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Space & Astronomy

Water likely to be common on other planets

By T.K. Randall
May 8, 2015 · Comment icon 7 comments

Asteroids and comets can deposit water on the surface of planets. Image Credit: NASA/JPL
Water-rich asteroids are thought to have brought water to countless other worlds throughout the universe.
Most of the water on the Earth is believed to have been delivered here by asteroids during the earliest days of the solar system, a process that could have easily been repeated on other worlds.

Evidence of this was found in a recent study in which scientists discovered heavy elements such as oxygen, magnesium, silicon and iron in the atmosphere of a distant white dwarf star, a clear indication of a collision with a water-rich asteroid.
"Our research has found that, rather than being unique, water-rich asteroids similar to those found in our Solar System appear to be frequent," said lead researcher Dr. Roberto Raddi. "Accordingly, many planets may have contained a volume of water, comparable to that contained in the Earth."

Finding one of these water-rich, Earth-like worlds however is likely to prove extremely challenging.

Source: Independent | Comments (7)




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Recent comments on this story
Comment icon #1 Posted by Machala2012 9 years ago
Imagine the life that could have evolved on the planet fostered our water. I wonder if i was a compete watery plantet or if its similar to our own. Oh the questions the unvierse poses.
Comment icon #2 Posted by Rhino666 9 years ago
Well, where ever it is we can't get to and we have more than enough here!
Comment icon #3 Posted by Infernal Gnu 9 years ago
Just avoid Miller's very watery planet unless you want to brag to friends that you surfed a tsunami on a planet orbiting a colossal black hole or want to make yourself physiologically younger compared to them as well (1 hour there = 7 earth years).
Comment icon #4 Posted by DONTEATUS 9 years ago
Point is we don't really take care of our water here at All ! Time we started to .
Comment icon #5 Posted by Rofflaren 9 years ago
Just avoid Miller's very watery planet unless you want to brag to friends that you surfed a tsunami on a planet orbiting a colossal black hole or want to make yourself physiologically younger compared to them as well (1 hour there = 7 earth years). Interstellar..... Awesome movie
Comment icon #6 Posted by BeastieRunner 9 years ago
I think I've read this before.
Comment icon #7 Posted by Foil Hat Ninja 9 years ago
This gives me a new appreciation for bottled water delivery people. They are the asteroids of modern civilization.


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