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Apparently a lot of Earth's oceans may have been created by comets, which whacked into the infant planet billions of years ago, bringing precious loads of ice, a study published Wednesday in the journal Nature suggests.
- - - Kuiper Belt
Some evidence supporting this theory comes from a signature of the ratio of heavy hydrogen, or deuterium, in water. Ice on a comet called 103P/Hartley 2, analysed by an infrared instrument aboard Europe's Herschel space telescope as it swung by Earth in October and November 2010, has the same deuterium ratio as water on Earth.
MEDIA REPORTS AND FACTS:
Earth’s oceans a gift from the space: new clues
October 7, 2011
SPACE NEWS,TECH NEWS
Astronomers have found a new cosmic source for water that appeared on Earth billions of years ago covering its entire surface initially.
Uploaded by Kowch737 on Sep 24, 2010
Dust ground off icy bodies in the Kuiper Belt, the cold-storage zone that includes Pluto and millions of other objects, creates a faint infrared disk potentially visible to alien astronomers looking for planets around the sun. Neptune's gravitational imprint on the dust is always detectable in new simulations of how this dust moves through the solar system. By ramping up the collision rate, the simulations show how the distant view of the solar system might have changed over its history.
Comet ice may have fed Earth's oceans
CBC News Posted: Oct 5, 2011 1:40 PM ET Last Updated: Oct 5, 2011 3:50 PM ET
Some of the water that covers much of the Earth may have been carried here by comets from beyond Neptune, new evidence suggests.
The water in a comet called 103P/Hartley 2 is chemically very similar to water on Earth, suggesting that some of Earth's water comes from the same comet family, reports an international study led by Paul Hartogh at the Max-Planck-Institut fur Sonnensystemforschung and published Wednesday in Nature. 103P/Hartley 2 is believed to come from the Kuiper belt beyond the orbit of Neptune.
Monday, Oct. 10, 2011 @ 12:58:55 pm
You learn something interesting everyday, and I bet we haven't seen that much yet!
This is well done as well!
Asteroid Belt C4D
"Comet Hartley 2 contains water more like that found on Earth than all the comets we know about, researchers say. A study using the Herschel space telescope aimed to measure the fraction of deuterium, a rare type of hydrogen, present in the comet's water. Like our oceans, it had half the amount of deuterium seen from other comets. The result, published in Nature, hints at the idea that much of the Earth's water could have initially come from cometary impacts."
Comment from: Yagisu [Member]
The more we advance in time the more we find out with technology how ancient the sphere and our plant are, awesome discovery!!
Comment from: HELLena
Absolutely awesome information, thank you so much!!
Check this out!
This Week @NASA
Uploaded by Kowch737 on Jun 10, 2011
NASA astronaut Mike Fossum and Satoshi Furukawa of the Japan Aerospace Exploration Agency joined cosmonaut Sergei Volkov aboard the Soyuz spacecraft he commanded and lifted off from the Baikonur Cosmodrome for the International Space Station.
One of many interesting theories to endlessly learn from - thank you that is quite interesting!
The photosphere image clips are outstanding!