Friday, 14 December, 2018

NASA's spacecraft arrives at asteroid Bennu

First Ever VIDEO Filmed From Asteroid Surface First Ever VIDEO Filmed From Asteroid Surface
Sandy Nunez | 06 December, 2018, 15:44

And OSIRIS-REx's precise tracking of Bennu through space will help researchers better understand the non-gravitational forces (specifically, the Yarkovsky effect) that shape asteroids' trajectories.

OSIRIS-REx has traversed over two billion kilometers to reach Bennu which it will spend a year studying.

The asteroid Bennu, as seen by NASA's OSIRIS-REx spacecraft from a distance of about 50 miles (80 kilometers). The image, which was taken by the PolyCam camera, shows Bennu at 300 pixels and has been stretched to increase contrast between highlights and shadows. During this period, OSIRIS-REx completed four maneuvers slowing the spacecraft's velocity from approximately 1,100 miles per hour (491 m/sec) to 0.10 miles per hour (0.04 m/sec) relative to Bennu, which resulted in the slower approach speed at the end of the video.

The data collected by OSIRIS-REx will prove useful in a variety of other ways as well, mission team members have said. During this period, OSIRIS-REx completed four maneuvers slowing the spacecraft's velocity from approximately 491 m/s to 0.04 m/s relative to Bennu, which resulted in the slower approach speed at the end of the video.

It would be the first-ever asteroid sample return by the U.S.

This morning marked a milestone for a mission to survey and collect a sample from the asteroid Bennu.

"OSIRIS-REx and Hayabusa 2 are companion missions", Dante Lauretta, a planetary scientist at the University of Arizona and the principal investigator for the OSIRIS-REx mission, said in September.

The spacecraft launched on September 8, 2016 at 19:05 EST aboard an Atlas V rocket.

Scientists have estimated that in 2135 Bennu could pass closer to Earth than the moon, which orbits at a distance of about 4,02,336 km, and possibly come closer still some time between 2175 and 2195.

Samsung Galaxy A8s with Infinity O display coming on 10 December 2018?
The sole selfie camera here is expected to be coupled with a triple rear-camera setup as more sensors are now becoming the norm. This implementation of the front-facing camera allows for an all-front display, minus the little hole in the corner, of course.

About the size of a large auto, the spacecraft will shadow the asteroid for a year, before scooping up some gravel for return to Earth in 2023. It's a time capsule of what happened as the solar system was forming.

A Japanese spacecraft, meanwhile, has been hanging out at another near-Earth asteroid since June, also for samples. It will also look for a good spot for the most ambitious part of the mission: Dropping down so close that the TAGSAM can literally touch the asteroid.

Ryugu's specks should be here by December 2020, but will be far less than Osiris-Rex's promised booty. Bennu may contain the molecular precursors to the origin of life and the Earth's oceans.

'Bennu is a leftover fragment from the tumultuous formation of the solar system, ' NASA says. If needed, it can make up to three sampling attempts, according to Asteroid Mission.

The National Aeronautics and Space Administration's (Nasa) deep space probe has reached an asteroid which has a potential to collide with Earth. That means they could smack Earth years from now. Its orbit switches between those of Earth and Mars, making it what's officially called a "near-Earth asteroid".

This is NASA's first mission to a near-Earth asteroid.

USA based space agency NASA's spacecraft OSIRIS-REx rendezvoused with its targeted asteroid Bennu on Monday after a two-year space travel. Its odometer read 1.2bn miles (2bn km) as of Monday.

Why send a spacecraft to an asteroid? OSIRIS-REx will then depart Bennu in 2021.