Millennium Post

‘Earth’s water came from asteroids, not comets’

‘Earth’s water came from asteroids, not comets’
Water on Earth is more likely to have come from asteroids that hit our planet billions of years ago than comets, European researchers said on Wednesday.

Mankind’s first-ever probe of a comet came last month when the European Space Agency’s Philae lander touched down on the duck-shaped 67P/Churyumov-Gerasimenko comet, but the latest report in the journal Science comes from an instrument aboard the Rosetta spacecraft that has been studying the comet’s interior since August.

“We have to conclude the terrestrial water was brought by asteroids more likely than comets,” said Kathrin Altwegg, principal investigator on the ROSINA mass spectrometer.
Agencies

Agencies

Our contributor helps bringing the latest updates to you


Share it
Top