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The Daily Cosmos or Interesting Facts about the Universe

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The Daily Cosmos or Interesting Facts about the Universe

Cosmology
Astrophysics
Astronomy

Location: #science
Members: 58
Latest Activity: on Monday

 

Cosmology - Astrophysics - Astronomy

 

Hubble Wallpaper - Awesome Hubble Images

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Comment by Stephen on Monday

Vista From Mars Rover Looks Back Over Journey So Far

Comment by Stephen on Monday

5,000 Days on Mars; Solar-Powered Rover Approaching 5,000th Martian Dawn

https://www.nasa.gov/feature/jpl/5000-days-on-mars-solar-powered-ro...

Comment by Mrs.B on Saturday

Does it have frosting?

Comment by Doone on Saturday

Rotating Dusty Gaseous Donut Around Black Hole

Comment by Doone on Friday

A pair of interacting galaxies called Arp 273.

Comment by Doone on Friday

The Andromeda galaxy, the one nearest to our own Milky Way, isn't such a big shot after all.

Astronomers had thought Andromeda was about two to three times the size of the Milky Way, and that our own galaxy would ultimately be overtaken by our bigger neighbor.

But the latest research, published Wednesday, evens the score between the two galaxies.

"By examining the orbits of high-speed stars, we discovered that this galaxy has far less dark matter than previously thought, and only a third of that uncovered in previous observations," said study lead author Prajwal Kafle of the University of Western Australia.

Both galaxies are about 800 billion times the mass of the sun, the study determined. Since they're so similar in size, "we can put this gravitational arms race to rest," said University of Sydney astrophysicist Geraint Lewis.

At about two million light-years apart, the Milky Way and Andromeda are two giant spiral galaxies. Andromeda is so bright and close to us that it is one of only 10 galaxies that can be spotted from Earth with the naked eye, NASA reports. 

Comment by Davy on February 12, 2018 at 12:09pm

Mars has a bloody big pimple on it! 

Comment by Doone on February 12, 2018 at 5:43am
Comment by Doone on February 10, 2018 at 9:55am
Comment by Doone on February 7, 2018 at 9:44pm

Found: First Evidence of Planets Outside the Milky Way - Atlas Obscura https://www.atlasobscura.com/articles/planets-outside-milky-way-gal...

 
 
 

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