ID:
1553031031397756200
Tue, 2019-03-19 21:22
WASHINGTON: After two years crossing the solar system, the NASA space probe Osiris-Rex arrived last December near the asteroid Bennu to complete its mission of collecting a sample — but touching the rock will prove much harder than scientists had expected.
The Osiris-Rex team said Tuesday that the surface of the asteroid, which measures 490 meters (1,600 feet) in diameter, was covered in stones and boulders. They had expected it to be smoother and easier for the probe to touch.
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