The Japanese space probe Hayabusa completed a sample return mission from the asteroid Itokawa.
(CNN) — Scientists have made the first measurements of water in samples collected from the surface of an asteroid, according to a new study.
The Japanese space probe Hayabusa completed a sample return mission from the asteroid Itokawa, retrieving 1,500 particles. Another mission, Hayabusa2, is conducting a sample return mission on the asteroid Ryugu.
A study detailing the analysis of five of the particles from the asteroid samples was published Wednesday in the journal Science Advances. The samples were collected from an area on Itokawa known as the Muses Sea, which is smooth and dusty.
“We found the samples we examined were enriched in water compared to the average for inner solar system objects,” said Ziliang Jin, lead study author and postdoctoral scholar in Arizona State University’s School of Earth and Space Exploration, in a statement.
Japan’s space agency said it successfully dropped a small bomb on an asteroid on Friday as part of its mission to better understand the history of the Solar System.
The Japan Aerospace Exploration Agency (JAXA) said its Hayabusa2 spacecraft detonated the copper explosive, also known as the Small Carry-on Inspector (SCI), on the Ryugu asteroid on Friday.
The SCI weighs about 2 kg (4.4 lbs) and is the size of a baseball, The Associated Press (AP) reported.
Hayabusa2 released the SCI about 500 meters (1,640 feet) above Ryugu’s surface around 11:13 am Japanese time (02:13 UTC) on Friday, JAXA tweeted.
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