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Friday, October 28, 2016

NASA promised to deliver on the Ground fragments of a dangerous asteroid

American aerospace Agency NASA said that on 8 September of the current year it is planned to launch a scientific probe OSIRIS-REx that will approach the asteroid Bennu and bring him to Earth samples of the soil. As reported, an asteroid this in the past was called “chief potentially dangerous for the Earth object.”

photo: nasa.gov

The asteroid Bennu was opened in September 1999 and was originally called 1999 RQ36. In April 2013 space object was named in honor of the Bennu bird — creatures, which, according to ancient Egyptian mythology, alicetarot the soul of Osiris, one of the main ancient Egyptian deities. In honor of Osiris, as you can pay attention, was named the spacecraft the launch of which is expected in less than a month. At the same time the name OSIRIS-REx is an acronym and stands for Origins Spectral Interpretation Resource Identification Security Regolith Explorer, which means “origins – spectral interpretation – resource discovery – security – regolith Explorer” and generally represents the list of tasks facing the probe.

Bennu belongs to the group of Apollo, near-earth asteroids whose orbits cross earth’s orbit from the outside. Its average diameter is more than 500 meters. In the event of a fall to the Ground, according to experts, the speed of the asteroid would have reached 12.86 kilometers per second. The fall was equivalent to the explosion, tens to hundreds of times more powerful than any explosive device ever created by mankind. In the next century, the probability of such a collision is negligible, but in the second half of the next century it will be about 1 to 4,000, which makes Benn, potentially the most dangerous for the Earth asteroid known.

Tasks of the scientific camera OSIRIS-REx will be much more prosaic prevent the end of the world, but from a scientific point of view is very ambitious. During the mission, with a probe is planned to collect from 60 grams to 2 kilograms of asteroid soil with the help of special positioner with pneumatic device. Also a celestial body is planned to examine carefully with the help of cameras, spectrometers and other devices mounted on OSIRIS-REx.


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