Nasa Finds Signs Of Water On Asteroid Bennu

    • Reuters
    • Publish Date: Dec 12 2018 3:25PM
    • |
    • Updated Date: Dec 12 2018 3:25PM
Nasa Finds Signs Of Water On Asteroid Bennu

 Nasa’s OSIRIS-REx spacecraft has discovered ingredients for water on a relatively nearby skyscraper-sized asteroid, a rocky acorn-shaped object that may hold clues to the origins of life on Earth, scientists said on Monday.

OSIRIS-REx, which flew last week within a scant 12 miles (19 km) of the asteroid Bennu some 1.4 million miles (2.25 million km) from Earth, found traces of hydrogen and oxygen molecules — part of the recipe for water and thus the potential for life — embedded in the asteroid’s rocky surface.


The probe, on a mission to return samples from the asteroid to Earth for study, was launched in 2016. Bennu, roughly a third of a mile wide (500m) , orbits the sun at roughly the same distance as Earth. There is concern among scientists about the possibility of Bennu impacting Earth late in the 22nd century. “We have found the water-rich minerals from the early solar system, which is exactly the kind of sample we were going out there to find and ultimately bring back to Earth,” Dante Lauretta, the OSIRIS-REx mission’s principal investigator said.


“When samples of this material are returned by the mission to Earth in 2023, scientists will receive a treasure trove of new information about the history and evolution of our solar system,” Amy Simon, a scientist at Nasa’s Goddard Space Flight Center in Maryland, said in a statement.


“We’re really trying to understand the role that these carbonrich asteroids played in delivering water to the early Earth and making it habitable,” Lauretta added.

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played in delivering water to the early Earth and making it habitable,” Lauretta added.

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