– There is some evidence that there has been water on the Bennu in the past. There is good news. It is a surprise, " says NASA-scientist Amy Simon.
NASA sent in 2016 the spacecraft Osiris-Rex to Bennu. 3. December came, the probe forward, and on Monday announced NASA its first investigations of the asteroid.
There is no water on the asteroid now, but preliminary investigations show that there are hydrogen - and oksygenmolekyler on asteroidens surface, writes Reuters. Project manager Dente Lauretta at the University of Arizona says it appears that the Bennu, which has a diameter of 487 metres, was once part of a larger asteroid that probably had water on its surface.
When huygens came to the Bennu, hovered it around 19 kilometers above the surface of the small himmellegemet. Since then, the probe is slowly moved even closer. It should kretse around the asteroid for a year, before it must land and take samples of the surface. Then to the after the plan to return and land in a desert in Utah in the united STATES in 2023.
the Researchers hope that the samples will provide information that can help in the understanding of the path to the asteroids which may threaten earth. There is a fear among scientists that the Bennu may collide with the earth in the 22. century.