Science Photo of the Week

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Offline Geezer

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Wait a minute! That one looks a bit dodgy.

If there was enough light to illuminate the bottom of the plane, how come the con trails are only illuminated when they are in front of the Moon?

Also, with that amount of magnification, I would have thought the aeromobile would not be so well focused.

There ain'ta no sanity clause, and there ain'ta no centrifugal force æther.

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Offline RD

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There is a bright aura close to the plane in some areas: consistent with a soft mask being used (photoshop job).

[attachment=13031]

The direction the moon is lit from and the shadows on the plane are inconsistent.

[BTW shouldn't the rapidly rotating propellors have more motion blur than the wings ?]


An Airplane in Front of the Moon
Credit & Copyright: Chris Thomas
... in the words of the photographer, "a nerve of steel".

 "a brass neck" more like.  [:)]
« Last Edit: 29/09/2010 22:17:11 by RD »

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Offline imatfaal

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Just with rough numbers (perhaps Lee could give a better figure for airspeed) a plane of that size would be doing about 150-250m/s which would be 60cm to a meter in 1/250 of a second.  Even with the naked eye you can see that the plane is much stiller than that - ie the shutter speed was much higher.  Ignoring the obvious contradiction which claims it was taken at 1/250 (which throws doubt on the whole story) I can't really reconcile such a clear picture of a fast moving plane with lovely bright detail of moon
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Offline RD

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It's supposed to be the moon in daylight, but the mare don't have the blue tint which they should have in daylight ...

[attachment=13040]
                                                                                                           http://www.flickr.com/photos/fpamplona/3715890266/

I think it's an image of the moon at night which has had the black sky replaced with dark blue to simulate a day moon, (but someone forgot to give the moon a blue tint). The NASA boffins should have spotted this ringer,
« Last Edit: 30/09/2010 14:26:16 by RD »

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Offline peppercorn

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I think it's an image of the moon at night which has had the black sky replaced with dark blue to simulate a day moon, (but someone forgot to give the moon a blue tint). The NASA boffins should have spotted this ringer,

Still, at least this ones real:

[attachment=13042]

 [:D]

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Offline imatfaal

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Mmm - there's a lot of debate in the ether about authenticity.  the photographer has defended himself and described his kit.  he is threatening to put the original raw file on web - this would allow much more detailed checking.  he has admitted to some renormalisation and auto-levelling which would explain some of the dodgy colours.
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Offline RD

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he is threatening to put the original raw file on web - this would allow much more detailed checking.

Please give us a butchers at the out-takes too: where the shutter was pressed a little too late or too early,
 he should have plenty of them if this is not a composite image, (or did he get the timing right first time ?  [::)] ). 
« Last Edit: 02/10/2010 08:13:02 by RD »

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Offline imatfaal

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He claimed he waited to press shutter (or in fact release cable shutter control) and has been waiting for opportunity for weeks.

here are two of his posts
nightsky forum post
ice in space forum
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A Sheepy in Front of the Moon

Credit & Copyright: Lien Nietspe



[attachment=13046]

Bonafide non Doctored genuine photo !


If ewe look closely at the Moon, ewe will see a large woolly quadrupedal legged ruminant in front of it. Well, not always. OK, hardly ever. But if ewe wait for days with your camera attached to a Moon tracker in a place where sheep are known to pass, ewe might catch a good photograph of it. Well, if ewe're lucky. OK, extremely lucky. The above image was taken tewe weeks ago over North London Flying Sheep Farm using an exposure time of 1/250th of a second and, in the words of the photographer, "a nerve of wool".
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Offline Geezer

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That's Neil alright - Neil Armstrong!  You can't full me Sheepy.
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Offline Geezer

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He claimed he waited to press shutter (or in fact release cable shutter control) and has been waiting for opportunity for weeks.

here are two of his posts
nightsky forum post
ice in space forum


He's sticking to his guns! I'm surprised nobody brought up the mystery of the missing con trails. Why would they suddenly stop at the edge of the Moon?

Any ideas? I still think it's a fake.
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Offline RD

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Quote
   
A Sheepy in Front of the Moon
Credit & Copyright: RD

[attachment=13062]

Bonafide Doctored photo !

« Last Edit: 01/10/2010 10:09:14 by RD »

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Offline Geezer

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It must be legit! Look, the contrail extends well beyond the Moon.
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Offline neilep

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Apostles Near Melbourne, Australia


October 01, 2010

TwelveApostles
Photographer: Ray Boren
Summary Author: Ray Boren


[attachment=13064]

 Apostles Near Melbourne, Australia

October 01, 2010

TwelveApostles
Photographer: Ray Boren
Summary Author: Ray Boren

Southwest of Melbourne, along Australia’s Great Ocean Road, stand a series of off-shore rock towers called the Twelve Apostles. Now, though, only eight remain. These sea stacks, up to 148 feet (44 m) in height, are the eroded remnants of Miocene limestone headlands and caves
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Offline neilep

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Hubble's Lagoon
Credit: NASA, ESA, Hubble Space Telescope

[attachment=13080]

BIGGY PICCY HERE


 Like brush strokes on a canvas, ridges of color seem to flow across this scene. But here, the canvas is nearly 3 light-years wide and the colors map emission from ionized gas in the Lagoon Nebula, recorded by the Hubble Space Telescope's Advanced Camera for Surveys. Also known as M8, the nebula is a star forming region about 5,000 light-years distant in the constellation Sagittarius. Hubble's remarkably sharp, close-up view reveals undulating shapes sculpted by the energetic light and winds from the region's new born stars. Of course, the Lagoon nebula is a popular target for earthbound skygazers, too. It features a prominent dust lane and bright hourglass shape in small telescopes with wider fields of view.
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Offline neilep

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Io in True Color
Credit: Galileo Project, JPL, NASA


[attachment=13092]


The strangest moon in the Solar System is bright yellow. This picture, an attempt to show how Io would appear in the "true colors" perceptible to the average human eye, was taken in 1999 July by the Galileo spacecraft that orbited Jupiter from 1995 to 2003. Io's colors derive from sulfur and molten silicate rock. The unusual surface of Io is kept very young by its system of active volcanoes. The intense tidal gravity of Jupiter stretches Io and damps wobbles caused by Jupiter's other Galilean moons. The resulting friction greatly heats Io's interior, causing molten rock to explode through the surface. Io's volcanoes are so active that they are effectively turning the whole moon inside out. Some of Io's volcanic lava is so hot it glows in the dark.
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Azul Odd Rock

[attachment=13133]
Photographer: Luis Argerich
Summary Author: Luis Argerich; Jim Foster


The egg shaped rock shown above was found in what is referred to as the Azul Sierras of the Buenos Aires Province in Argentina. It stands approximately 15 feet (about 5 m) high and is about 30 feet (9 m) wide. This range is part of the ancient Tandilia Mountain System that begins near Olavarria, Argentina and descends eastward into the Atlantic Ocean between Mar del Plata and Miramar -- two popular coastal cities in northeastern Argentina. The Tandilia system contains some of the oldest rock formations on Earth, dating from the Precambrian period. Tens of millions of years ago, this system was part of a cordillera that was higher than the Himalayas. Today, however, the highest peak is just 1,804 feet (550 m) high. How this particular rock acquired its shape and how it was placed in its current position is a mystery. Photo taken on September 11, 2010.
« Last Edit: 08/10/2010 19:53:00 by neilep »
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Offline RD

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... How this particular rock acquired its shape and how it was placed in its current position is a mystery.

It reminds me of one of these which are formed by erosion ...

[attachment=13135]
http://en.wikipedia.org/wiki/Balancing_rock

[or a glacial erratic]
« Last Edit: 08/10/2010 22:41:53 by RD »

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Circumzenithal Arc Over Tracy, California
[attachment=13173]

TRACYCIRCUMZENITHAL
Photographer: Isolde Irene
Summary Author: Isolde Irene; Jim Foster


Having a chance to see colorful arcs like the circumzenithal arc shown above should be reason enough to look up every once in awhile. This beauty was taken from Tracy, California on September 28, 2010 at 6:15 p.m. It was visible for approximately thirty minutes. The Sun was dipping toward the horizon and the circumzenithal arc was positioned nearly overhead, in command of the sky. These graceful arcs form in hexagonal ice crystals found in cirrus clouds; sunlight enters the upper basal face of the plate-shaped crystals and exits through a side face.
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Offline CliffordK

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Hubble's Lagoon
Credit: NASA, ESA, Hubble Space Telescope

Like brush strokes on a canvas, ridges of color seem to flow across this scene.

People were complaining about the plane in front of the moon...

What about the Hubble Photos...
The "details", of course are real...  as real as they could be.
But the colors aren't.  They do give a spectacular ART effect.

The photos aren't taken in white light, but are composites of UV, IR, overlays of various filters...  all "false colors" as far as I can tell.

Here is a quote from one of the Nebula pages:
http://www.spaceimages.com/lagnebdet.html
Quote
These color-coded images are the combination of individual exposures taken in July and September, 1995 with Hubble’s Wide Field and Planetary Camera 2 (WFPC2) through three narrow-band filters (red light — ionized sulphur atoms, blue light — double ionized oxygen atoms, green light — ionized hydrogen).

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Zeta Oph: Runaway Star
Credit: NASA, JPL-Caltech, WISE Team



[attachment=13901]

Like a ship plowing through cosmic seas, runaway star Zeta Ophiuchi produces the arcing interstellar bow wave or bow shock seen in this stunning infrared portrait from the WISE spacecraft. In the false-color view, bluish Zeta Oph, a star about 20 times more massive than the Sun, lies near the center of the frame, moving toward the top at 24 kilometers per second. Its strong stellar wind precedes it, compressing and heating the dusty interstellar material and shaping the curved shock front. Around it are clouds of relatively undisturbed material. What set this star in motion? Zeta Oph was likely once a member of a binary star system, its companion star was more massive and hence shorter lived. When the companion exploded as a supernova catastrophically losing mass, Zeta Oph was flung out of the system. About 460 light-years away, Zeta Oph is 65,000 times more luminous than the Sun and would be one of the brighter stars in the sky if it weren't surrounded by obscuring dust. The WISE image spans about 1.5 degrees or 12 light-years at the estimated distance of Zeta Ophiuchi.
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Iridescent Clouds from the Top of the World Highway
Credit & Copyright: Charles Stankievech & Sophie Springer


[attachment=13906]

Why would a cloud appear to be different colors? A relatively rare phenomenon known as iridescent clouds can show unusual colors vividly or a whole spectrum of colors simultaneously. These clouds are formed of small water droplets of nearly uniform size. When the Sun is in the right position and mostly hidden by thick clouds, these thinner clouds significantly diffract sunlight in a nearly coherent manner, with different colors being deflected by different amounts. Therefore, different colors will come to the observer from slightly different directions. Many clouds start with uniform regions that could show iridescence but quickly become too thick, too mixed, or too far from the Sun to exhibit striking colors. This iridescent cloud was photographed last year from the Top of the World Highway outside Dawson City, in the Yukon Territory in Northern Canada.
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Offline neilep

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Unconformity at Blacktail Canyon

Photographer: Nel Graham
Summary Author: Nel Graham





[attachment=13937]

This photo showing a geologic feature known as an unconformity was taken in Blacktail Canyon, Arizona; one of the many small slot canyons that adjoin the Grand Canyon at the level of the Colorado River.  This sandstone slab is estimated to be about 550 million years old; whereas the supergroup ranges from 1.2 billion to 800 million years old.

Photo taken in July of 2008.
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Window Frost Patterns

Photographer: Heather J. Renyck
Summary Author: Heather J. Renyck


[attachment=13985]

Frost forms on windows when the glass is exposed to sub-freezing conditions on the outside combined with comparatively moist air on the inside. Frozen dew is a variety of frost that forms when the air temperature drops below 32 degrees F (0 degrees C) but when the air is colder (near 15 degrees F or -10 degrees C) water vapor condenses directly on the chilled glass to form hoar frost. Imperfections on the surface of the glass, smearing, the presence of dust and pollen grains, etc. affect the frost pattern. In this case, it appears a spider's web had a significant influence on the design of the window frost. If you look closely, you'll notice sparkling colors in the frost crystals (upper right). These hexagonal crystals act like tiny prisms when sunlight passes through them. Photo taken from the window of a home in Meaford, Ontario on January 16, 2011.
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The North America Nebula in Infrared
Credit: NASA, JPL-Caltech, L. Rebull (SSC, Caltech); Optical Rollover: DSS, D. De Martin


[attachment=13987]

BIGGY PICCY HERE

 The North America Nebula can do what most North Americans cannot -- form stars. Precisely where in the nebula these stars are forming has been mostly obscured by some of the nebula's thick dust that is opaque to visible light. However, a new view of the North America Nebula in infrared light by the orbiting Spitzer Space Telescope has peered through much of the dust and uncovered thousands of newly formed stars. Rolling your cursor over the above scientifically-colored infrared image will bring up a corresponding optical image of the same region for comparison. The new infrared image neatly captures young stars in many stages of formation, from being imbedded in dense knots of gas and dust, to being surrounded by disks and emitted jets, to being clear of their birth cocoons. The North America Nebula (NGC 7000) spans about 50 light years and lies about 1,500 light years away toward the constellation of the Swan (Cygnus). Still, of all the stars known in the North America Nebula, which massive stars emit the energetic light that gives the ionized red glow is still debated.
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Greenhouse City

[attachment=14264]
Photographer: Edward Burtynsky (National Geographic)
Summary Author: Elizabeth Kolbert (National Geographic); Jim Foster


The photo above showing greenhouses galore in shades of beige, tan and sepia was taken above Almería Province in southeastern Spain. On the arid plains of Spain, produce is grown under the world's largest array of greenhouses and trucked northward to various distribution centers. The advantage of greenhouses is that they’re able to use water and nutrients more efficiently than conventional farming methods. In addition, they can churn out crops all year long – even tomatoes in winter, for instance. However, growing grain crops and producing more beef under glass is a different matter. The global challenge today is to increase sources of protein, which is essential for many key body functions, particularly in locations where food production is now deficient. It currently takes 38 percent of Earth's ice-free surface to feed seven billion people, and yet two billion more mouths will need to be fed by mid century.
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ONE TRILLION STARS !! ANDROMEDA GALAXY IN INFRARED !
[attachment=14286]
The Andromeda Galaxy Earlier Today !

The detailed Spitzer Space Telescope view above features infrared light from dust (red) and old stars (blue) in Andromeda, a massive spiral galaxy a mere 2.5 million light-years away. In fact, with over twice the diameter of our own Milky Way, Andromeda is the largest nearby galaxy. Andromeda's population of bright young stars define its sweeping spiral arms in visible light images, but here the infrared view clearly follows the lumpy dust lanes heated by the young stars as they wind even closer to the galaxy's core. Constructed to explore Andromeda's infrared brightness and stellar populations, the full mosaic image is composed of about 3,000 individual frames. Two smaller companion galaxies, NGC 205 (below) and M32 (above) are also included in the combined fields. The data confirm that Andromeda (aka M31) houses around 1 trillion stars, compared to 4 hundred billion for the Milky Way.
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Offline neilep

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Big Dipper/The Plough and Sunflowers



[attachment=14288]
By: Tamas Ladanyi
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Space Station and Discovery Shuttle



[attachment=14309]
By: Tamas Ladanyi

The space shuttle Discovery and the International Space Station pass across the sky above Hungary. The shuttle was separated from the station on the way back home. This was the last flight of Discovery before getting retired. Discovery appears surrounded by haze because the shuttle was in the process of dumping wastewater when this sequence of images was taken.
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22-Degree Halo Over Dayton, Ohio
[attachment=14400]

Photographer: John Chumack
Summary Author: John Chumack; Jim Foster


The photo above showing an eye-catching 22-degree halo and upper tangent arc was captured just before sunset over Dayton, Ohio on January 21, 2011. Halos form from pencil-shaped ice crystals, typically found in cirrus clouds, having no preferred orientation. Sunlight passing through the side faces of these crystals is refracted 22 degrees from the initial angle of incidence before exiting through an alternate side face. If the long axes of some of these same crystals are aligned so that they lie nearly in a horizontal orientation, upper tangent arcs (tangent to the top of the halo) may take shape. Always protect your eyes when looking toward the Sun.
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Offline neilep

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Red Snow in Upstate New York
[attachment=14537]
Photographer: Carl Crumley
Summary Author: Carl Crumley; Jim Foster


The photo above showing a patch of reddish snow was taken this past winter near Medina, New York. The coloration is caused by the presence of an algae, Chlamydomonas nivalis, which in addition to chlorophyll is composed of a carotenoid pigment. Sometimes referred to as "watermelon snow," it often proliferates in melting snowpacks. Meltwater hastens its distribution.
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Offline Edge03zn

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 How is this s#!@t possible?!

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Offline RD

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How is this s#!@t possible?!

He was 66 when this BBQ occurred, so pain-induced vasovagal cardiac arrest is a possible explanation, i.e. would explain why he didn't run about whilst aflame as one would expect : his heart would have stopped a few moments after he lit the blue orange touch paper.

[don't try this at home]
« Last Edit: 03/06/2011 02:54:10 by RD »

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Offline Edge03zn

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Ohk thanks for the links. I was under the impression that this was a display of superhuman monk powers (like levitation) and he was left unscathed.

But still f%&kin amazing.
« Last Edit: 03/06/2011 09:26:02 by Edge03zn »

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Mycorrhizal Fungi

[attachment=14927]

Photographer: Phil Lachman
Summary Author: Phil Lachman


The photo above shows a lovely group of mushrooms nestled against the trunk of a eucalyptus tree. The association between the fungi and the tree however is no accident. This is a mutualistic relationship, where the two species assist each other, and in fact probably would be poorer without each other. Mutualism is any relationship between two species of organisms that benefits both species. Up to a quarter of the mushrooms you see while walking through the woods actually make their living through a mutualistic relationship with the trees in the forest. Remember of course that the mushroom is just the reproductive structure of a far more extensive organism consisting of a highly intertwined mass of fine white threads called a mycelium.

The word mycorrhiza is derived from the Classical Greek words for "mushroom" and "root." In a mycorrhizal association, the fungal hyphae of an underground mycelium are in contact with plant roots but without the fungus parasitizing the plant. While it's clear that the majority of plants form mycorrhizas, the exact percentage is uncertain, but it's likely to lie somewhere between 80 and 90 percent. When the fungus’ mycelium envelopes the roots of the tree the effect is to greatly increase the soil area covered by the tree’s root system. This essentially extends the plant’s reach to water and nutrients, allowing it to utilize more of the soil’s resources. This mutualistic association provides the fungus with a relatively constant and direct access to carbohydrates, such as glucose and sucrose, supplied by the plant. In return the plant gains the benefits of the mycelium's higher absorptive capacity for water and mineral nutrients (due to comparatively large surface area of mycelium-to-root ratio), thus improving the plant's mineral absorption capabilities
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Offline imatfaal

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Hello Sheepy - good to see ewe posting.  Pictures of fungi are wasted on me - no matter whether deadly poisonous or not I just cannot help thinking of butter, garlic and hot toast when I see a mushroom
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Offline neilep

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Hello Sheepy - good to see ewe posting.  Pictures of fungi are wasted on me - no matter whether deadly poisonous or not I just cannot help thinking of butter, garlic and hot toast when I see a mushroom

Yummy, I made a delicious mushroom sandwich the other day with garlic and black pepper !!...delish !!
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Lenticular Clouds Over Wales

July 26, 2011

[attachment=14945]


Photographer: Graham Stephen; Graham's website
Summary Author: Graham Stephen; Jim Foster


These stacked lenticular clouds were observed from the A5 Road just east of Tryfan, Wales, in the mountain pass between the Carneddau and Glyderau ranges. Normally found in the lee of mountains, altocumulus lenticularis are a type of stationary wave cloud that results when air is forced to rise over elevated terrain. Water vapor within the wave layer condenses at the wave crest if the temperature is sufficiently cool (dew point temperature), forming a smooth, lens shaped cloud. The cloud evaporates due to adiabatic heating when it sinks into the drier wave trough. In this way, clouds appear at intervals closely related to the wavelength.

source: http://epod.usra.edu/
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Offline Don_1

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You silly old sheepy, that's no cloud, its the alliens, they're here and they're coming to get ewe...

[attachment=14947]
If brains were made of dynamite, I wouldn't have enough to blow my nose.

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Offline neilep

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LOL DON1 !


well...I'm convinced !
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Cloud Iridescence


[attachment=14953]


Cloud iridescence is the occurrence of colors in a cloud similar to those seen in oil films on puddles, and is similar to irisation. It is a fairly uncommon phenomenon and is usually observed in altocumulus, cirrocumulus and lenticular clouds but very rarely in Cirrus clouds.[1][2][3] The colors are usually pastel but sometimes they can be very vivid. Iridescence is most frequently seen near to the sun with the sun's glare masking it. It is most easily seen by hiding the sun behind a tree or building. Other aids are dark glasses or observing the sky by its reflection in a convex mirror or in a pool of water.

Iridescent clouds are a diffraction phenomenon. Small water droplets or even small ice crystals in clouds individually scatter light. Large ice crystals produce halos, which are refraction phenomena rather than iridescence. Iridescence should similarly be distinguished from the refraction in larger raindrops that gives a rainbow.

If parts of the clouds have droplets (or crystals) of similar size the cumulative effect is seen as colors. The cloud must be optically thin so that most rays encounter only a single droplet. Iridescence is therefore mostly seen at cloud edges or in semi-transparent clouds. Newly forming clouds produce the brightest and most colorful iridescence because their droplets are of the same size. When a thin cloud has droplets of similar size over a large extent the iridescence takes on a structured form to give a corona, a central bright disk around the sun or moon surrounded by one or more colored rings.


SOURCE: WIKIPEDIA
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Offline Geezer

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You silly old sheepy, that's no cloud, its the alliens, they're here and they're coming to get ewe...


Are you sure about that? Looks more like somebody nuked Swansea to me (and I can't say I blame them).
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Offline neilep

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Eternal Flame Waterfall




[attachment=15054]

Photographer: Carl Crumley
Summary Author: Carl Crumley; Jim Foster



It seems that there's only one waterfall in the world with a flame burning beneath it. This is the Eternal Flame Waterfall, on Shale Creek, in Chestnut Ridge Park, near Buffalo, New York. A pocket of natural methane gas in an alcove below the waterfall seeps out through a fracture in the rocks. The flame goes out from time to time (it's not really eternal) but is easy to relight. We'll probably never know who the first person to light it was
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Offline neilep

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StratoSpera Balloon Flight

[attachment=15096]

Stratospera1-burst-balloon
Image created by Francesco Bonomi
Summary Author: Paolo Amoroso


This image shows an onboard look from the Italian StratoSpera 1 (STSp-1) balloon flight high above central Italy. It was taken from an altitude of approximately 53,360 ft (16,260 m). In the foreground is the burst balloon, which became entangled in the gondola and parachute lines during descent. This view over Tuscany, where the balloon reached its apex, faces the Tyrrhenian Sea. Elba island is visible at right beyond the coast. STSp-1 reached a maximum altitude of 17.1 mi (27.6 km) -- in the mid stratosphere. This balloon and others like it offer a rather inexpensive way to acquire high altitude photography and to sample ambient meteorological conditions.
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Offline neilep

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A Sun Pillar Over Ontario



[attachment=15120]

Image Credit & Copyright: Rick Stankiewicz (Peterborough Astronomical Association)


 What is that on the horizon? No, it's not an alien starship battling distant Earthlings, but rather a sun pillar. When driving across Ontario, Canada in early June, the photographer was surprised to encounter such an "eerie and beautiful" vista, and immediately took pictures. When atmospheric air is cold, ice sometimes forms flat six-sided crystals as it falls from high-level clouds. Air resistance then causes these crystals to lie nearly flat much of the time as they flutter to the ground. If viewed toward a rising or setting Sun, these flat crystals will reflect sunlight and create an unusual column of light -- a sun pillar as seen above.
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Offline Don_1

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Most unusual and very beautiful, sheepy. It looks almost as if a red narrow beam spot lamp has been directed from ground level into the clouds. Rick was lucky to have been in the right place at the right time.
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Offline neilep

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Most unusual and very beautiful, sheepy. It looks almost as if a red narrow beam spot lamp has been directed from ground level into the clouds. Rick was lucky to have been in the right place at the right time.

Thanks Don....here are some more
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Roll Cloud Over Wisconsin


[attachment=15174]

Image Credit: Pierre cb, Wikipedia


 What kind of cloud is this? A type of arcus cloud called a roll cloud. These rare long clouds may form near advancing cold fronts. In particular, a downdraft from an advancing storm front can cause moist warm air to rise, cool below its dew point, and so form a cloud. When this happens uniformly along an extended front, a roll cloud may form. Roll clouds may actually have air circulating along the long horizontal axis of the cloud. A roll cloud is not thought to be able to morph into a tornado. Unlike a similar shelf cloud, a roll cloud is completely detached from their parent cumulonimbus cloud. Pictured above, a roll cloud extends far into the distance as a storm approached in 2007 in Racine, Wisconsin, USA.
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Offline Karen W.

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Incredible photos Neil.. thanks for posting them and the links!

"Life is not measured by the number of Breaths we take, but by the moments that take our breath away."

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Sauropod Print in Dinosaur Valley State Park

[attachment=15193]

Photographer: Loren Ann Stiles
Summary Author: Loren Ann Stiles


The hard drought in Texas this summer has taken its toll; crops are shriveled, rivers are drying up and even cacti are showing stress. But droughts such as this offer a rare glimpse of an extensive collection of dinosaur tracks at the Dinosaur Valley State Park near Glen Rose, Texas. Normally covered in water, the tracks of sauropods and theropods are for the time being exposed in the limestone bed of the Paluxy River. This small sauropod print is approximately 12 in (30 cm) across. The setting for this park was formed by sediment deposited more than 100 million years ago along rivers that once flowed into an ancient sea. Over perhaps the last 1 million years, the layered sediment has been gradually worn away revealing the long ago submerged footprints. Photo taken on August 2, 2011.
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