NASA selects sample collection site on asteroid 'Bennu'

15 Décembre, 2019, 11:08 | Auteur: Therese Cote

The sampler head, with the regolith safely inside, is then sealed up in the spacecraft's Sample Return Capsule, which will be returned to Earth in late 2023. Once collected, the sample will consist of about 30 sugar packets worth of material.

Since arriving at the asteroid last December, NASA's OSIRIS-REx mission has been mapping its surface to determine the best spot to collect samples next year.

And analyses of Bennu's motion could help researchers better predict the trajectories of potentially unsafe asteroids - a category that includes Bennu, by the way. Collecting multiple ounces of material from an asteroid could be an incredible boon for scientists.

A close up image of a relatively boulder free crater known as "Nightingale" on the asteroid Bennu, where the OSIRIS-Rex mission will attempt to collect a sample next year.

"Of the four candidates, site Nightingale best meets these criteria and, ultimately, best ensures mission success", he continued.

This announcement follows a months-long selection process between four bird-named candidates: Sandpiper (specifically a western sandpiper), Osprey, Kingfisher (specifically a common kingfisher), and Nightingale, all of which seemed to be fairly hazard-free.

Eruption en Nouvelle-Zélande: les deux derniers corps n'ont pas été retrouvés
Des gaz toxiques s'échappent toujours du cratère et l'île est couverte d'une épaisse couche de cendres volcaniques. Des vols de drones ont aidé à localiser les corps de six personnes avant le début de l'opération.

Space News Conference to Review First All-Woman Spacewalk
Many hailed that historic milestone while also regretting that it took so long into the Space Age for it to take place. NASA canceled it abruptly when it became clear there were not enough spacesuits in the appropriate size .

Méfiez-vous de l'arnaque aux colis — Noël
Le site en question ressemble fortement à un site officiel des douanes ou d'un transporteur (DHL, Colissimo etc.). Si vous pensez avoir été victime d'une escroquerie , vous pouvez faire un signalement sur la plateforme Pharo .

Bennu, it turns out, is a very rocky asteroid and this is a problem for NASA. All four sites are diverse in their location and features. The crater, which is about 460 feet wide, has a relatively smooth surface and cool temperatures.

Soon, an image of the asteroid appeared on mission control screens: a diamond-shaped body with a rough, speckled exterior. Thus, the team selected Osprey as a back-up site for the sampling mission. That's one-tenth of the space they thought they had to work with to sample the asteroid's surface. As well, there's one large boulder (it's the size of a building) on the crater's rim where it may be a risk to the spacecraft.

The team members of the mission briefed the media houses about such development on Thursday. "The team has adapted by employing a more accurate, though more complex, optical navigation technique to be able to get into these small areas".

OSIRIS-REx was within 12 miles of Bennu's surface - about the distance between the White House and NASA's Goddard Space Flight Center, which manages the spacecraft. Once these flyovers are complete, the spacecraft will begin rehearsals for its first "touch-and-go" sample collection attempt, which is scheduled for August.

The mission - which stands for Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer - launched in September 2016. Scientists are suspecting that the carbon-rich asteroids brought the source of life to the earth. A direct hit is unlikely, but the data gathered during this mission can help determine the best ways to deflect near-Earth asteroids.

Next year, OSIRIS-REx will drift down to Nightingale and make contact with the surface as it blasts out a jet of compressed nitrogen. The primary aim of the spacecraft was to gathering information about the initial days of the solar system. This knocked it through space until an orbit close to Earth locked it in place.



President Trump Comments on New Jersey Shooting, Vows to Combat Anti-Semitism
The president also lamented the shooting in Jersey City , New Jersey in which a gunman opened fire at a Kosher super market. Students protest at an anti-Israel demonstration at the University of California, Irvine.

Saka is a tremendous talent, says Ljungberg
The comeback started as Alexandre Lacazette headed the ball into the net calming the nerves of the traveling fans. Irfan Can Kahveci replied before half time and Enzo Crivelli hit the late victor after a goalmouth scramble.

UK Election: Conservatives Take Seat Held By Labour For Nearly 70 Years
Early results showed the Brexit Party had poached a significant number of voters from Labour . He said he would not lead the party in any future elections.

Star Wars invades Fortnite Chapter 2 - Fortnite x Star Wars event recap
The final installment of the sequel trilogy is getting a lot of creative promotion - even by Star Wars standards. After log-in delays briefly pushed the event back to 2:10 pm EST, the event finally kicked off.

Reaction: Sixers Win in Boston & Joel Embiid Has Fun!
He received a standing ovation when he was shown on the scoreboard, and he acknowledged the crowd with a wave. Kemba Walker scored 29 points for Boston, which lost at home for the first time all season.

Really weird when I'm a woman in 17 years
Billie Eilish is used to picking ensembles that make her stand out no matter where she goes. "We are both in love with her". I hope something happens with her. "Scooter [Braun] never contacted me or my team to discuss it prior to the sale".

Lord Buckethead and Elmo: Check out these colourful election candidates
Yes, the character from children's TV show Sesame Street! Ali Milani (Labour) secured 18,141 votes. Both went up against the prime minister in the Uxbridge and South Ruislip constituency .

Jets-Red Wings Sum
To say that he has had a more well-rounded game would be an understatement, and still, I want to know where the goals went. Defenceman Filip Hronek added an empty net goal to cap the victory for the Red Wings, who outshot the Jets 34-28.

Jamaica wins Miss World 2019
The actress and TV host finished in the Top 12, with only India's Suman Ratansingh Rao representing Asia in the final round. Rao eventually finished in third place, behind France's Ophely Mezino and overall victor , Jamaica's Toni-Anne Singh.

Saint-Etienne - PSG : six absents du groupe de Tuchel, dont Edinson Cavani
Le milieu de terrain parisien a pu montrer ses qualités et justifié la confiance mise en lui par son entraîneur. L'entraîneur allemand a fait savoir que la formation parisienne devra se passer des services de six joueurs.