Tue, 15 Oct 2019

New Discovery Could Help Humans Survive in Space

Tasnim
09 Oct 2019, 22:36 GMT+10

TEHRAN (Tasnim) - Scientists have discovered how water molecules can be regenerated on asteroids moving through space, in an exciting breakthrough that could lead to human "habitability in space".

- Science news -

Space researchers have discovered how water is regenerated on asteroids. Scientists now know how water molecules can be regenerated on asteroids moving through space. This breakthrough could extend to other bodies such as the moon, The Express reported.

Published on Tuesday in the journal Nature Astronomy, the new research shows water can be replenished on the surface of asteroids if both solar wind and impacting meteoroids come together at very low temperatures.

Lead scientist Dr Katarina Miljkovic, from Curtin University's Space Science and Technology Centre, said the research proved that two components of the space weathering-both electrons and thermal shock-were necessary to maintain supplies of water molecules on asteroids, rather than just one as previously thought.

She said: "This complex process to regenerate surface water molecules could also be a possible mechanism to replenish water supplies on other airless bodies, such as the moon.

'This research finding has potentially significant implications."

She continued: "We all know the availability of water in the solar system is an extremely important element for habitability in space.'

The NASA-funded project saw a team take a piece of Australia's own Murchison meteorite, which fell to earth 50 years ago, and simulate the weather conditions of an asteroid belt inside a specially built a machine that mimics the conditions of an asteroid's surface.

The team then used energised electrons to simulate solar winds and lasers to mimic small meteoroids slamming into the asteroid, while monitoring water molecule levels at the surface.

Meteoroid impacts initiate the reaction.

Then solar winds blast the surface leaving unbonded oxygen and hydrogen atoms to bond, creating water.

Dr Miljkovic validated the use of laser ablation as a substitute for micrometeoroid bombardment.

Scientists have also begun to take the likelihood of asteroids hitting Earth again more seriously because of the 'Yarkovsky effect."

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