[neilep]

Fastest supercomputer gets faster
Blue Gene (Image: IBM)

Blue Gene snatched the crown from Japan in November
Blue Gene/L, the fastest supercomputer in the world, has broken its own speed record,
 reaching 135.5 teraflops - a trillion calculations a second.

That is double the speed it clocked up to take it to the number one spot in the Top 500
 supercomputer league.




The IBM Blue Gene machine that achieved the new mark is being assembled for the
 Lawrence Livermore National Laboratory, a US Department of Energy (DOE) lab.

It did 70.72 teraflops last year to beat Japan's NEC Earth Simulator.

The Blue Gene/L is due to be completed for the Livermore labs in 2005.

   
WORLD TOP 5 SUPERCOMPUTERS
1. Blue Gene/L, USA
2. Columbia, USA
3. Earth Simulator, Japan
4. MareNostrum, Spain
5. Thunder, USA
Its peak theoretical performance is expected to be 360 teraflops, with the machine
taking up 64 full racks.


SOURCE: BBC.CO.UK


Men are the same as women.... just inside out !!

[neilep]

Old Softy: Tyrannosaurus fossil yields flexible tissue


Sid Perkins

Scientists analyzing fragments of a Tyrannosaurus rex's leg bone have recovered pliable
 material containing structures that appear to be cells and blood vessels.



TENDER TOUCH. Demineralized fragments from a Tyrannosaurus
 rex leg bone contain fibrous areas (arrows) yielding structures
 that appear to be cells of a type found in living bone.
Science

Paleontologists usually find only a creature's hard body parts, such as bones, teeth,
or shells, preserved as fossils. In the rare instances when internal organs, muscles,
skin, and other soft body parts turn up, the original tissue has been replaced by
minerals that create hard replicas, says Mary H. Schweitzer, a paleontologist at
 North Carolina State University in Raleigh. Sometimes, a soft tissue's shape is
 recorded by sediments that surround it.

Now, the first report of flexible material from a fossil describes an extraction
from the femur, or upper leg bone, of a T. rex that lived about 68 million years ago in
 what is now Montana.

SOURCE:SCIENCENEWS.ORG

Men are the same as women.... just inside out !!

[neilep]

Hubble telescope spies cosmic dust bunnies

SPACE TELESCOPE SCIENCE INSTITUTE NEWS RELEASE


Like dust bunnies that lurk in corners and under beds, surprisingly complex loops and blobs
 of cosmic dust lie hidden in the giant elliptical galaxy NGC 1316. This image made from
 data obtained with the NASA Hubble Space Telescope reveals the dust lanes and star clusters
of this giant galaxy that give evidence that it was formed from a past merger of two
gas-rich galaxies.


Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA)
Download larger image version herehttp://imgsrc.hubblesite.org/hu/db/2005/11/images/a/formats/large_web.jpg

The combination of Hubble's superb spatial resolution and the sensitivity of the
Advanced Camera for Surveys (ACS), installed onboard Hubble in 2002 and used for these images,
 enabled uniquely accurate measurements of a class of red star clusters in NGC 1316.
 Astronomers conclude that these star clusters constitute clear evidence of the occurrence
 of a major collision of two spiral galaxies that merged together a few billion years ago
 to shape NGC 1316 as it appears today.

source: spaceflightnow.com

Men are the same as women.... just inside out !!

[neilep]

New image of Earth, seen through gamma-ray eyes
NASA-GSFC NEWS RELEASE


A NASA-funded scientist has produced a new type of picture of the Earth from space,
which complements the familiar image of our "blue marble". This new picture is the first
 detailed image of our planet radiating gamma rays, a type of light that is millions to
billions of times more energetic than visible light.


Here we see a false-color image of the Earth in three
gamma-ray energy bands, analogous to the colors red (lower energy),
 green (mid energy) and blue (higher energy) in the visible
spectrum. For the complete caption and print-resolution versions,
see the links at the end of this article. Credit: NASA/CGRO/EGRET/
Dirk Petry

The image portrays how the Earth is constantly bombarded by particles from space.
These particles, called cosmic rays, hit our atmosphere and produce the gamma-ray light high
 above the Earth. The atmosphere blocks harmful cosmic rays and other high-energy radiation
 from reaching us on the Earth's surface.

source: spaceflightnow.com



Men are the same as women.... just inside out !!

[neilep]

Planets galore like Earth await discovery

ROYAL ASTRONOMICAL SOCIETY NEWS RELEASE


How many planets like the Earth are there among the 130 or so known planetary systems beyond our own?
 How many of these "Earths" could be habitable?


An artist's impression shows an Earth-like planet. Credit: Julian Baum/Take 27 Ltd.

 Recent theoretical work by Barrie Jones, Nick Sleep, and David Underwood at the Open University
in Milton Keynes indicates that as many as half of the known systems could be harbouring habitable
 "Earths" today.

Unfortunately, existing telescopes are not powerful enough to see these relatively small, distant
"Earths". Orbiting close to a much brighter star, these very faint worlds resemble glow-worms
hidden in the glare of a searchlight.

All of the planets that have been detected so far are giants the mass of Neptune or larger.
 Even so, they cannot be directly seen with ground-based instruments. Almost all
 of the known exoplanets have been found through the "wobbling" motion they induce in
 their star as they orbit it, like a twirling dumb-bell in which the mass at one end (the star)
 is much greater than the mass at the other end (the giant planet).

SOURCE: SPACEFLIGHTNOW.COM
 



Men are the same as women.... just inside out !!

[neilep]

LISA and the search for elusive gravity waves

ROYAL ASTRONOMICAL SOCIETY NEWS RELEASE


For almost 100 years, scientists have been searching for direct evidence of the existence
 of gravity waves - faint ripples in the fabric of spacetime predicted in Albert
 Einstein's theory of General Relativity.




An artist's concept shows the search for gravitational waves with LISA. Credit: ESA


 Today, the hunt for gravity waves has become a worldwide effort involving hundreds of scientists.
A number of large, ground-based facilities have been developed in Europe, the United States
and Japan, but the most sophisticated search of all will soon take place in space.

Speaking on Tuesday 5 April at the RAS National Astronomy Meeting in Birmingham, Professor Mike Cruise
 described a joint ESA-NASA project called LISA (Laser Interferometric Space Antenna),

Scheduled for launch in 2012, LISA will comprise three spacecraft flying in formation around the Sun,
 making it the largest scientific instrument ever placed in orbit.

"LISA is expected to provide the best chance of success in the search for the exciting,
 low frequency gravity waves," said Professor Cruise. "However, the mission is one of the most complex,
 technological challenges ever undertaken."

According to Einstein's theory, gravity waves are caused by the motion of large masses
(e.g. neutron stars or black holes) in the Universe. The gravitational influence
between distant objects changes as the masses move, in the same way that moving electric
charges create the "electromagnetic waves" that radio sets and TV's can detect.

SOURCE: SPACEFLIGHTNOW.COM

Men are the same as women.... just inside out !!

[neilep]

Case of Sedna's missing moon reported solved
HARVARD-SMITHSONIAN CENTER FOR ASTROPHYSICS NEWS RELEASE


When the distant planetoid Sedna was discovered on the outer edges of our solar system,
 it posed a puzzle to scientists. Sedna appeared to be spinning very slowly compared to most
solar system objects, completing one rotation every 20 days. Astronomers hypothesized that
 this world possessed an unseen moon whose gravity was slowing Sedna's spin. Yet Hubble
Space Telescope images showed no sign of a moon large enough to affect Sedna.



CfA astronomer Scott Gaudi and his colleagues have
solved the case of Sedna's missing moon. That distant solar system
world (shown in this artist's conception) spins more rapidly than
originally thought, rotating once every 10 hours. Although Sedna is
unusual in many other ways, its rotation period is normal, meaning
 that no moon is required to slow it down. Credit: David A. Aguilar
(CfA)

New measurements by Scott Gaudi, Krzysztof (Kris) Stanek and colleagues at the Harvard-Smithsonian
 Center for Astrophysics (CfA) have cleared up this mystery by showing that a moon wasn't needed
after all. Sedna is rotating much more rapidly than originally believed, spinning once on its axis
every 10 hours. This shorter rotation period is typical of planetoids in our solar system,
 requiring no external influences to explain.

"We've solved the case of Sedna's missing moon. The moon didn't vanish because it was never
 there to begin with," said Gaudi.

Sedna is an odd world whose extreme orbit takes it more than 45 billion miles from the Sun,
or more than 500 astronomical units (where one astronomical unit is the average Earth-Sun distance
of 93 million miles). Sedna never approaches the Sun any closer than 80 astronomical units,
 and takes 10,000 years to complete one orbit. In comparison, Pluto's 248-year-long oval
 orbit takes it between 30 and 50 astronomical units from the Sun.

SOURCE: SPACEFLIGHTNOW.COM


Men are the same as women.... just inside out !!

[neilep]

Space explosions may have triggered extinction on Earth

NASA NEWS RELEASE


Scientists at NASA and the University of Kansas say that a mass extinction on Earth hundreds
 of millions of years ago could have been triggered by a star explosion called a gamma-ray burst.
 The scientists do not have direct evidence that such a burst activated the ancient extinction.
 The strength of their work is their atmospheric modeling -- essentially a "what if" scenario.


In this artist's conception we see the gamma rays
hitting the Earth's atmosphere. The gamma rays would destroy the
 ozone layer, breaking apart and ultimately converting ozone
molecules into brown, smog-like nitrogen dioxide. Credit: NASA


The scientists calculated that gamma-ray radiation from a relatively nearby star explosion,
hitting the Earth for only ten seconds, could deplete up to half of the atmosphere's protective
 ozone layer. Recovery could take at least five years. With the ozone layer damaged,
ultraviolet radiation from the Sun could kill much of the life on land and near the surface
of oceans and lakes, and disrupt the food chain.

Gamma-ray bursts in our Milky Way galaxy are indeed rare, but the scientists estimate that
at least one nearby likely hit the Earth in the past billion years. Life on Earth is thought
 to have appeared at least 3.5 billion years ago. This research, supported by a NASA
astrobiology grant, represents a thorough analysis of the "mass extinction" hypothesis
 first announced by members of this science team in September 2003.

SOURCE:SPACEFLIGHTNOW.COM



Men are the same as women.... just inside out !!

[neilep]

   
Classic galaxy with glamour

NASA/JPL PHOTO RELEASE



Credit: NASA/JPL-Caltech/OCIW
Download larger image version here




This color composite image of nearby NGC 300 combines the visible-light pictures from
Carnegie Institution of Washington's 100-inch telescope at Las Campanas Observatory
(colored red and yellow), with ultraviolet views from NASA's Galaxy Evolution Explorer.
Galaxy Evolution Explorer detectors image far ultraviolet light (colored blue).

This composite image traces star formation in progress. Young hot blue stars dominate the
outer spiral arms of the galaxy, while the older stars congregate in the nuclear regions which
appear yellow-green. Gases heated by hot young stars and shocks due to winds from massive stars
and supernova explosions appear in pink, as revealed by the visible-light image of the galaxy.

Located nearly 7 million light years away, NGC 300 is a member of a nearby group of galaxies
known as the Sculptor Group. It is a spiral galaxy like our own Milky Way.



SOURCE:SPACEFLIGHTNOW.COM


Men are the same as women.... just inside out !!

[neilep]

Egg-Citing Discovery: Dinosaur fossil includes eggshells

Sid Perkins

For the first time, scientists have found eggs with shells inside a dinosaur fossil,
strengthening previous conjectures about the ancient reptiles' reproductive physiology.




READY TO GO. This fossil egg, one of two found in a female dinosaur's pelvic cavity, retains its shell and external texture.
Y.-N. Cheng

The dinosaur remains were unearthed in southern China from petrified sediments laid down
between 100 million and 65 million years ago. The fragmentary fossil includes six back
vertebrae, two adjacent tail vertebrae, and other bones from the dinosaur's pelvic
area, says Tamaki Sato of the Canadian Museum of Nature in Ottawa.

The remains were too scant to assign to a particular species but enough for Sato and
her colleagues to identify the creature generally as an oviraptorosaur,
 a member of a group of dinosaurs that includes the feathered Caudipteryx

SOURCE: SCIENCENEWSONLINE



Men are the same as women.... just inside out !!

[neilep]

Stunning view of Saturn's moon Enceladus

CASSINI PHOTO RELEASE



Credit: NASA/JPL/Space Science Institute
Download larger image version here

Saturn's bright moon Enceladus hovers here, in front of rings darkened by Saturn's shadow. Enceladus is 505 kilometers (314 miles) across.

This view is from less than one degree beneath the ring plane. If seen from directly
beneath the rings, the planet's giant shadow would appear as an elongated half-ellipse;
the acute viewing angle makes the shadow look more like a strip here. The dark shadow
 first takes a bite out of the rings at the right, where the distant, outermost
ring material appears to taper and fade.

Ring features visible in this image from the outer ring edge inward include: the A ring,
 the Cassini Division and the B ring. The C ring is the darker region that dominates
the rings here. The two gaps visible near the center and below the left of the center are
 the Titan Gap, about 77,800 kilometers (48,300 miles) from Saturn, and an unnamed gap
about 75,800 kilometers (47,100 miles) from the planet.


SOURCE:SPACEFLIGHTNOW.com


Men are the same as women.... just inside out !!

[Andrew K Fletcher]

This amazing photo, taken by Michael Clancy and originally published in USA Today and The Tennessean on September 7, 1999, is authentic. It began circulating via email within weeks of its first appearance in newspapers.  
It should be "The Picture of the Year," or perhaps, "Picture of the Decade." It won't be. In fact, unless you obtained a copy of the paper, you probably never saw it. The picture is that of a 21-week-old unborn baby named Samuel Alexander Armas, who is being operated on by a gifted surgeon named Joseph Bruner.

The baby was diagnosed with spina bifida and would not survive if removed from his mother's womb. Little Samuel's mother, Julie Armas, is an obstetrics nurse from Atlanta, and she had heard of
Dr. Bruner's remarkable
surgical talents.


It should be "The Picture of the Year," or perhaps, "Picture of the Decade." It won't be. In fact, unless you obtained a copy of the paper, you probably never saw it. The picture is that of a 21-week-old unborn baby named Samuel Alexander Armas, who is being operated on by a gifted surgeon named Joseph Bruner.

The baby was diagnosed with spina bifida and would not survive if removed from his mother's womb. Little Samuel's mother, Julie Armas, is an obstetrics nurse from Atlanta, and she had heard of
Dr. Bruner's remarkable
surgical talents.

Large version http://www.michaelclancy.com/main_lrg.htm

Death is natures way of telling us to slow down.

[neilep]

Trap-building ants torture prey

A fierce species of Amazonian ant has been seen building elaborate traps on which hapless
 prey are stretched like medieval torture victims, before being slowly hacked to pieces.




With cunning and patience, the ants cut hairs from the
 stem of the plant they inhabit, and use the tiny fibres to build a
spongy platform. The elaborate trap snares its prey, which is then
stretched like a victim on a mediaeval rack before being hacked to
pieces.


With cunning and patience, Allomerus decemarticulatus worker-ants cut hairs from the stem of
 the plant they inhabit, and use the tiny fibres to build a spongy snare, Nature magazine reports.
This ingenious feat of engineering has only ever been observed in one other species of
related ant, French researchers say.
What the ants do is cut hairs to clear a path under the plant stem, while leaving some
hairs standing to form "pillars" on top of which the lethal platform will sit.
Using the plant hairs they have harvested, the ants weave the platform itself,
 which is bound together and strengthened using a special fungus.

When the ants have completed the chamber they puncture holes all along its surface,
each just big enough to poke their heads through.
Then, hundreds of
worker ants climb into the chamber and wait for an unfortunate victim.



There is no limit to the ants' ambition - they will try to catch any mammoth of the insect world

Ancient sacrifice

"Workers will hide inside the platform, with their mandibles just inside the hole and
they will wait there for prey to come," co-author Jerome Orivel of the University of Toulouse, France said.
Anything with legs slim enough to fit through the carefully constructed holes
 will meet a miserable fate if they are foolish enough to enter the trap.


"They will catch almost anything that goes on the trap," continued Dr Orivel. "And they will
 grab anything they can - legs, antenna, anything."
Once the prey is well
 secured by jaws fastening all its extremities, it is stretched over the platform like an ancient sacrifice to the gods.
Scores of worker
 ants then stream out from inside the trap and sting it vigorously to cause paralysis.

Once the creature is dead or fully immobilised, the ants will carry it to their nest, where they will dismember their prey before carrying it inside.

"Small insects will be immediately dismembered and transported to the nest," said
Dr Orivel. "But bigger insects will stay on the trap for up to 12 hours."
There is no limit to the ants' ambition and they will attempt to catch any mammoth
of the insect world - so long as it has slender legs.

"Their success depends on the type of insect," Dr Orivel told the BBC News website.
 "The insects' legs have to be smaller than the holes otherwise they cannot get hold of them.

"The ants must have something to catch - for example, caterpillars will have nothing to
get hold of so they will not be preyed upon."

SOURCE: BBC










Men are the same as women.... just inside out !!

[neilep]

Cassini produces three stunning new views of Titan

CASSINI PHOTO RELEASE





Credit: NASA/JPL/Space Science Institute
Download larger image version here

These three views of Titan from the Cassini spacecraft illustrate how different the same
place can look in different wavelengths of light. Cassini's cameras have numerous filters
 that reveal features above and beneath the shroud of Titan's atmosphere.

The first image, a natural color composite, is a combination of images taken through
three filters that are sensitive to red, green and violet light. It shows approximately
what Titan would look like to the human eye: a hazy orange globe surrounded by a tenuous,
 bluish haze. The orange color is due to the hydrocarbon particles which make up Titan's atmospheric haze.

The second, monochrome view shows what Titan looks like at 938 nanometers, a near-infrared
 wavelength that allows Cassini to see through the hazy atmosphere and down to the surface.

The third view, which is a false-color composite, was created by combining two infrared images
(taken at 938 and 889 nanometers) with a visible light image (taken at 420 nanometers).
Green represents areas where Cassini is able to see down to the surface. Red represents
areas high in Titan's stratosphere where atmospheric methane is absorbing sunlight.
Blue along the moon's outer edge represents visible violet wavelengths at which
 the upper atmosphere and detached hazes are better seen.

SOURCE: SPACEFLIGHTNOW.COM

Men are the same as women.... just inside out !!

[neilep]

The Whirlpool Galaxy and companion

SPACE TELESCOPE SCIENCE INSTITUTE NEWS RELEASE



Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA)
Download larger image version here

The graceful, winding arms of the majestic spiral galaxy M51 (NGC 5194) appear like a grand
spiral staircase sweeping through space. They are actually long lanes of stars and gas
laced with dust.

This sharpest-ever image of the Whirlpool Galaxy, taken in January 2005 with the Advanced Camera
for Surveys aboard NASA's Hubble Space Telescope, illustrates a spiral galaxy's grand design,
 from its curving spiral arms, where young stars reside, to its yellowish central core, a home
 of older stars. The galaxy is nicknamed the Whirlpool because of its swirling structure.

The Whirlpool's most striking feature is its two curving arms, a hallmark of so-called
grand-design spiral galaxies. Many spiral galaxies possess numerous, loosely shaped arms which
 make their spiral structure less pronounced. These arms serve an important purpose in spiral
 galaxies. They are star-formation factories, compressing hydrogen gas and creating clusters
 of new stars. In the Whirlpool, the assembly line begins with the dark clouds of gas on the
inner edge, then moves to bright pink star-forming regions, and ends with the brilliant blue
 star clusters along the outer edge.

SOURCE:SPACEFLIGHTNOW.COM

Men are the same as women.... just inside out !!

[neilep]

Hubble shows stellar spire in the Eagle Nebula

SPACE TELESCOPE SCIENCE INSTITUTE NEWS RELEASE




Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA)
Download larger image version here

Appearing like a winged fairy-tale creature poised on a pedestal, this object is actually
 a billowing tower of cold gas and dust rising from a stellar nursery called the
Eagle Nebula. The soaring tower is 9.5 light-years or about 57 trillion miles high,
about twice the distance from our Sun to the next nearest star.

Stars in the Eagle Nebula are born in clouds of cold hydrogen gas that reside in chaotic
 neighborhoods, where energy from young stars sculpts fantasy-like landscapes in the gas.
 The tower may be a giant incubator for those newborn stars. A torrent of ultraviolet
 light from a band of massive, hot, young stars [off the top of the image] is eroding the pillar.

The starlight also is responsible for illuminating the tower's rough surface. Ghostly streamers
of gas can be seen boiling off this surface, creating the haze around the structure and
highlighting its three-dimensional shape. The column is silhouetted against the background
 glow of more distant gas.

SOURCE:SPACEFLIGHTNOW.COM




Men are the same as women.... just inside out !!

[neilep]

Cassini finds particles near Saturn's moon Enceladus
NASA/JPL NEWS RELEASE
Posted: April 26, 2005

The Cassini spacecraft has discovered intriguing dust particles around Saturn's
moon Enceladus. The particles might indicate the existence of a dust cloud around Enceladus,
or they may have originated from Saturn's outermost ring, the E-ring.


Credit: NASA/JPL/Space Science Institute
Download larger image version here

Enceladus is rapidly becoming a very interesting target for Cassini. So much so that scientists
 and engineers are planning to revise the altitude of the next flyby to get a closer look.
 Additional Cassini encounters with Enceladus are scheduled for July 14, 2005, and March 12, 2008.
The July 14 flyby was to be at an altitude of 1,000 kilometers (620 miles), but the mission
team now plans to lower that altitude to about 175 kilometers (109 miles). This will be
Cassini's lowest-altitude flyby of any object during its nominal four-year tour.

Scientists have speculated that Enceladus is the source of Saturn's E ring, the planet's widest,
 stretching 302,557 kilometers (188,000 miles). It's possible, the scientists say, that tidal
 interactions between Enceladus and Mimas, two other moons of Saturn, have heated Enceladus'
 interior causing water volcanism

SOURCE:SPACEFLIGHTNOW.COM




Men are the same as women.... just inside out !!

[neilep]

'Wonderful' star reveals its hot nature

CHANDRA X-RAY CENTER NEWS RELEASE


For the first time an X-ray image of a pair of interacting stars has been made by NASA's
Chandra X-ray Observatory.



The Chandra image shows Mira A (right), a highly
evolved red giant star, and Mira B (left), a white dwarf. To the
right of the image is an artist's conception of the Mira star
system. Mira A is losing gas rapidly from its upper atmosphere via a
stellar wind. Mira B exerts a gravitational tug that creates a
gaseous bridge between the two stars. Gas from the wind and bridge
accumulates in an accretion disk around Mira B and collisions
between rapidly moving particles in the disk produce X-rays. Credit:
X-ray: NASA/CXC/SAO/M. Karovska et al.; Illustration: CXC/M.Weiss


SOURCE: SPACEFLIGHTNOW.COM     Other sauces, Soy, Strawberry , raspberry, Mustard and Ketchup....all good sauces.[]


Men are the same as women.... just inside out !!

[neilep]

Saturn's Odd Moon Out
by Amit Asaravala

Scientists this week got two steps closer to proving that Saturn
adopted one of its 34 known moons, thanks to two new studies of data
captured by NASA's Cassini spacecraft.


The studies, which explore the density and chemistry of the moon
Phoebe, show how the moon is closer in composition to the mysterious
 balls of ice and rock at the outer edges of the solar system than
it is to Saturn's other moons.


New studies support the theory that Saturn's moon
Phoebe was captured from the outer solar system by the planet's
gravitational pull rather than formed in place. The discovery gives
scientists the chance to study an object that has not changed much
since the birth of the solar system.

Photo: NASA/JPL/Space Science Institute

The results add weight to the theory that Phoebe is a planetary
building-block left over from the birth of the solar system -- a
rare find that may give scientists insight into how the solar system
was formed.


"If Phoebe is a body that came from the deep outer solar system --
if it formed farther out and was captured -- that's giving us a
snapshot of what was going on early on," said the density study's
 co-author Jonathan Lunine, a planetary scientist at the University of
Arizona.


SOURCE: www.wired.com

Men are the same as women.... just inside out !!

[neilep]

Cassini shows amazing icy moons of Saturn

CASSINI PHOTO RELEASE


Credit: NASA/JPL/Space Science Institute
Download larger image version here

A scene straight out of science fiction, this fantastic view shows, from left to right,
 Saturn's moon's Mimas, Dione and Rhea, on the far side of Saturn's nearly edge-on rings.


The trailing hemispheres of all three moons are sunlit here, and wispy markings can
 be seen on the limbs of both Dione and Rhea. The diameter of Mimas is 397 kilometers (247 miles),
Dione is 1,118 kilometers (695 miles) and Rhea is 1,528 kilometers (949 miles).

The image was taken in visible blue light with the Cassini spacecraft narrow-angle
camera at a distance of approximately 2.4 million kilometers (1.5 million miles) from Saturn.
 The image scale is 14 kilometers (9 miles) per pixel.

SOURCE:SPACEFLIGHTNOW.COM

Men are the same as women.... just inside out !!