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  1. Naked Science Forum
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  3. Physics, Astronomy & Cosmology
  4. The truth is out there, in pictures.
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The truth is out there, in pictures.

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Offline RD

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Re: The truth is out there, in pictures.
« Reply #120 on: 15/09/2017 08:14:46 »
It just occurred to me that planets with rings must have ringshine , (cf. moonshine) ...



"Saturn by Ringshine" ... https://www.jpl.nasa.gov/spaceimages/details.php?id=PIA10476

[Available in large "wallpaper" sizes]

* PIA10476_hires-crop.jpg (100.35 kB, 1065x600 - viewed 19257 times.)
« Last Edit: 15/09/2017 08:30:13 by RD »
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Offline sophiewilson0191

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Re: The truth is out there, in pictures.
« Reply #121 on: 28/03/2018 12:38:52 »
Truth to be told by a great mind Stephen Hawking.
Rest in Peace.
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Offline Jaaanosik

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Re: The truth is out there, in pictures.
« Reply #122 on: 27/06/2018 15:33:53 »
Could this halo be the missing 'dark matter' that explains galaxy rotation issue?
https://en.wikipedia.org/wiki/Galaxy_rotation_curve

The image is from here: https://www.nasa.gov/feature/goddard/nasa-s-hubble-finds-giant-halo-around-the-andromeda-galaxy


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Offline Janus

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Re: The truth is out there, in pictures.
« Reply #123 on: 27/06/2018 16:23:26 »
Quote from: Jaaanosik on 27/06/2018 15:33:53
Could this halo be the missing 'dark matter' that explains galaxy rotation issue?
https://en.wikipedia.org/wiki/Galaxy_rotation_curve

The image is from here: https://www.nasa.gov/feature/goddard/nasa-s-hubble-finds-giant-halo-around-the-andromeda-galaxy



The article states that the estimated mass of this halo is 1/2 the total mass of the stars in Andromeda.  To account for the galaxy rotation curves, it would need to be a few times the total mass of the stars.

When it comes to effecting the orbital speed of a star in a galaxy it is only the mass that is closer to the center of the galaxy than the star that counts (imagine the star as being on the surface of a bubble. it is the mass inside that bubble that determines its orbital speed.)   For the gas halo to provide the required mass, it would have to be many times the density it is measured to have.  Also, as the article points out, this gas plays a role in star formation for the galaxy.  If it was many times denser, it would have had a profound effect on this.
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Offline rsneha

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Re: The truth is out there, in pictures.
« Reply #124 on: 08/10/2018 11:19:42 »
Cool pics
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Offline TimothyKiz

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The truth is out there in pictures
« Reply #125 on: 23/02/2019 17:16:57 »
Uh, no.  If the universe is 14 billion years old, there is no reason to believe that advanced life could form and find us by now.   I think there is likely life out there, based on the mathematics ,  but finding us is almost impossible.
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Offline RidaChat

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Re: The truth is out there, in pictures.
« Reply #126 on: 12/07/2019 02:01:39 »
WOW! amazing!!!
These what we called wonders and mysteries.
I don't have any photo to share at the moment. But I loved staring stars in a clear night sky.
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Offline Balticskillz

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Re: The truth is out there, in pictures.
« Reply #127 on: 28/07/2019 22:40:23 »
The galaxy is a big and mysterious place. Astronomers are consistently finding new planets.  We had a very heated forum discussion if unidentified planets and if life truly exists on other planets. Find out more! My opinion we are not alone! :D :D :D :D
« Last Edit: 29/07/2019 12:56:21 by Colin2B »
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Offline ashking

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Re: The truth is out there, in pictures.
« Reply #128 on: 11/03/2020 17:50:44 »
anyone wants to share any pic can do here
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Offline Paul25

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Re: The truth is out there, in pictures.
« Reply #129 on: 19/03/2020 13:05:37 »
Mindblowing pics
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Offline adamsmitt

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Re: The truth is out there, in pictures.
« Reply #130 on: 16/10/2020 12:00:13 »
Cool, it is so amazing. Thanks for sharing it.
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Offline AsfandBoss1122

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[url=https://nope.com/]The Spam Site[/url]
« Reply #131 on: 24/12/2020 16:36:47 »
This article is very helpful for us, Thanks for sharing. Such a more nice and valuable Article. Really your site is very awesome. Thanks for giving us these kinds of Articles
« Last Edit: 24/12/2020 17:18:58 by Halc »
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Offline Kryptid

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Re: The truth is out there, in pictures.
« Reply #132 on: 24/12/2020 16:39:47 »
Quote from: AsfandBoss1122 on 24/12/2020 16:36:47
This article is very helpful for us, Thanks for sharing. Such a more nice and valuable Article. Really your site is very awesome. Thanks for giving us these kinds of Articles

Don't advertise on our site.
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Offline Just thinking

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The moon
« Reply #133 on: 16/09/2021 17:53:40 »
The moon was taken with my Meade 8 inch Cassegrain telescope F.L. 2000mm / F.R. F10. 300x magnification.
* 1.png (837.55 kB . 1280x960 - viewed 4389 times)
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Offline Iannguyen

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Re: The truth is out there, in pictures.
« Reply #134 on: 22/12/2021 07:50:07 »
This is one of the most amazing threads.

Space is a very captivating thing. I wish that I could capture space myself someday. Every picture makes you wonder what lies beneath all these amazing and bewitching sceneries. This picture is from NASA's 'with a tapestry of blazing star birth, Hubble commemorates 30 years in space'. NASA has unveiled a magnificent new snapshot of a firestorm of star birth in a nearby galaxy to commemorate the Hubble Space Telescope's 30 years of revealing the beauty and mystery of space. The enormous red nebula (NGC 2014) and its smaller blue companion (NGC 2020) are part of a massive star-forming area in the Large Magellanic Cloud, a satellite galaxy of the Milky Way 163,000 light-years distant in this Hubble image. Due to its resemblance with the undersea world, the image is also nicknamed Cosmic Reef. Hubble is transforming contemporary astronomy, not just for scientists but also for the general public, by bringing them on a breathtaking voyage of exploration and discovery. Hubble's never-ending, magnificent cosmic images serve as a visual summary of Hubble's greatest scientific accomplishments. Hubble made astronomy relevant, entertaining, and accessible to people of all ages, unlike any other space telescope before it. The iconic vision of the space telescope has altered our understanding of the cosmos and our location in time and space.
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