• Space/Science
  • GeekSpeak
  • Mysteries of
    the Multiverse
  • Science Fiction
  • The Comestible Zone
  • Off-Topic
  • Community
  • Flame
  • CurrentEvents

Recent posts

Nagasaki memories ER August 6, 2025 1:51 pm (Off-Topic)

Afrikaan- American news ER August 5, 2025 8:01 am (CurrentEvents)

Season 3 - Foundation BuckGalaxy August 2, 2025 12:33 pm (Science Fiction)

Shoot the messenger BuckGalaxy August 1, 2025 2:00 pm (CurrentEvents)

AI and the superconducting relativistic monkey collider RL July 26, 2025 10:14 pm (Off-Topic)

Trump's namecalling is no match for the Scots BuckGalaxy July 26, 2025 2:15 pm (Flame)

Retirement home Spirit cover -- yeah, we had better music. ER July 26, 2025 7:31 am (Off-Topic)

Maxwell's Silver Hammer ER July 26, 2025 6:58 am (CurrentEvents)

♫ I tell you to enjoy life I wish I could but it's too late ♫ BuckGalaxy July 22, 2025 1:32 pm (Off-Topic)

Home » Space/Science

Water Older Than the Sun . . . October 3, 2014 9:35 am DanS

Earth Has Water Older Than the Sun
Not all water in the solar system today could have formed in our solar system

Sep 26, 2014 |By Elizabeth Gibney and Nature magazine

As much as half of the water in Earth’s oceans could be older than the Sun, a study has found.

By reconstructing conditions in the disk of gas and dust in which the Solar System formed, scientists have concluded that the Earth and other planets must have inherited much of their water from the cloud of gas from which the Sun was born 4.6 billion years ago, instead of forming later. The authors say that such interstellar water would also be included in the formation of most other stellar systems, and perhaps of other Earth-like planets.

The dense interstellar clouds of gas and dust where stars form contain abundant water, in the form of ice. When a star first lights up, it heats up the cloud around it and floods it with radiation, vaporizing the ice and breaking up some of the water molecules into oxygen and hydrogen.

Until now, researchers were unsure how much of the ‘old’ water would be spared in this process. If most of the original water molecules were broken up, water would have had to reform in the early Solar System. But the conditions that made this possible could be specific to the Solar System, in which case many stellar systems could be left dry, says Ilsedore Cleeves, an astrochemist at the University of Michigan in Ann Arbor, who led the new study.

More.

  • I love this stuff. by bowser 2014-10-04 16:52:03
    • Astrochemistry by ER 2014-10-03 10:02:13
      • Gold . . . by DanS 2014-10-03 11:07:58
        • The sun hasn't produced anything, except helium. by ER 2014-10-03 12:15:37

      Search

      The Control Panel

      • Log in
      • Register