After two-year journey, NASA Osiris-Rex spacecraft arrives at asteroid Bennu

06 Décembre, 2018, 15:42 | Auteur: Therese Cote
  • This series of images taken by NASA’s OSIRIS-REx spacecraft shows Bennu in one full rotation from a distance of around 50 miles. The spacecraft’s Poly Cam camera obtained the thirty-six 2.2-millisecond frames over a period of four hours and 18

Bennu will be the smallest astronomical object ever orbited by a spacecraft; it's only around 1,600 feet from end to end, on average.

It is the first USA attempt to gather asteroid samples for return to Earth, something only Japan has accomplished so far.

OSIRIS-REx is going to asteroid Bennu to retrieve a sample and return it. "To Bennu and back!"

OSIRIS-REx was launched on September 8, 2016, onboard the Atlas V rocket from Cape Canaveral, Florida.

The spacecraft design, a 4,650 pound craft when fueled, draws on Mars Reconnaissance Orbiter heritage and was built in their Denver facility.

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.

Mr Lauretta said scientists were interested in "organic molecules that may have led to the origin of life and water-bearing minerals like clays" in their analysis of the asteroid.

Demi Lovato returns to jiu-jitsu after overdose
She continued, "I'm sorry my sister is handsome , she's alive and she's conquering a lot of really hard s-". She's even getting back in her fighting shape, according to her recent post online.

9-Year-Old Leads The Charge In Changing ‘Illegal Snowballs’ Law
In this Thursday, Nov. 29, 2018, photograph, 9-year-old Dane Best poses in the council chambers in Severance, Colo . The last time it snowed, Dane said he and his friends looked around for police and joked about breaking the law.

This Is Why Harry & Meghan Skipped the Queen's Diplomatic Reception
Prince William couldn't attend the charity event, as he and the Duchess of Cambridge attended the Queen's annual Diplomatic Reception.

This will be packed away in a sterile capsule to be returned home in 2023. OSIRIS REx is led by the University of Arizona and it's the first US spacecraft to visit an asteroid with plans to bring a sample of it back home. "This successful test shows that, when the time comes, TAGSAM is ready to reach out and tag the asteroid".

A Japanese spacecraft, meanwhile, has been hanging out at another near-Earth asteroid since June, also for samples.

Soon an image of the asteroid appeared on the mission control screens: a diamond-shaped body with a rough, speckled exterior. This latest rock is named Ryugu and is about double the size of Bennu.

Engineer Tim Linn explains how the Osiris-Rex will suck up asteroid dust. The spacecraft won't land but use a three-metre mechanical arm in 2020 to momentarily touch down and pick up particles. We believe it holds clues to the origins of our Mother Earth, and possibly it contains materials that are high in amino acids and carbon-rich material that give us a peek back into what really was happening during the formation of Earth and what may have brought life to Earth.

Why did NASA select Bennu out of the 780,000 known asteroids in our solar system? That makes it a near-Earth asteroid, like the one Japan's Hayabusa-2 mission is now studying. That means Bennu may resemble what Earth looked like when life began here - making this asteroid an incredibly compelling science target. At worst, Bennu would carve out a crater during a projected close call 150 years from now. The spacecraft will then make two more polar flybys, giving the team on Earth a chance to get to get comfortable with the spacecraft's navigational capabilities near Bennu.

By expanding our understanding of asteroids, the mission could also help scientists to better understand the threat that asteroids may pose to humans on Earth. Once arriving at its destination, OSIRIS-REx will spend a year-and-a-half surveying the asteroid and preparing to collect a sample that it will later return to Earth. Its odometer read 1.2 billion miles (2 billion kilometers) as of Monday.

"These observations have revealed an asteroid that is both consistent with our expectations from ground-based measurements and an exceptionally interesting small world". "Bennu is one of the ones we are watching", Dante Lauretta, the OSIRIS-REx principal investigator, said in August.



Embiid's double-double powers 76ers past Knicks 117-91
He didn't stick around to offer his usual quips and one-liners to the media - Embiid split to catch up with his family. Fultz had said he wasn't hurt and the decision came a day after he appeared to lose his backup point guard spot.

Waldo County General Hospital receives national award
The University of Michigan's Michigan Medicine was awarded as a top teaching hospital, its fifth since 2010. The selection of Top Hospitals was based on surveys from almost 1,900 hospitals across the nation.

Harmanpreet Kaur, Smriti Mandhana tell BCCI they want Ramesh Powar as coach
Both Kaur and Mandhana have praised Ramesh Powar in their emails, saying that he has imbibed a winning mentality into the squad. Sir Ramesh Powar not only improved us as players but also did motivate us to set targets and challenge our own limits.

Pakistan's Shah fastest to 200 Test scalps
Pakistan had hopes of an emphatic win once Shaheen Shah Afridi had Ross Taylor caught hooking for 22 with the total at 60-4. But BJ Watling resisted with 77 not out, delaying his record until the second innings.

Central Intelligence Agency briefing on Khashoggi solidifies senators’ view of Prince Mohammed’s complicity
However, a USA official told NBC that Khalid is not expected to be expelled from the country and would continue on as ambassador. Lindsey Graham , R-S.C., told reporters after an hourlong briefing by Gina Haspel , the Central Intelligence Agency director.

Girl Needs a Rare Blood Type Only Found in Indians, Pakistanis
Still, Zainab could not find a match at the very beginning of her search in September, KTLA reported. OneBlood is offering to coordinate compatibility testing anywhere in the world.

Grâce à lui, les boules de neige sont autorisées
Depuis qu'il avait appris l'existence de cette " loi d'un autre temps " il y a un mois et demi, Dane Best ne cessait d'en parler. Les boules de neige faisaient techniquement partie de cette prohibition.

Spanish court upholds controversial 'Wolf Pack' conviction
Throughout her ordeal, the victim kept her eyes shut and, according to a police report, acted in a "passive or neutral" manner. The ruling shone a light on Spanish law, in which the offense of rape requires evidence of physical violence or intimidation.

USA warship challenges Russian Federation claims in Sea of Japan
The move came only a week after China mobilized its own vessels in response to a perceived transgression by the Navy. The guided-missile destroyer USS McCampbell in a 2015 photo.

Ireland still concerned about European Union digital tax despite new proposal - minister
The directive would not prevent Member States from introducing in their domestic legislation a digital tax on a broader base. Under this proposal, the tax would not come into force until January 2021, and only if no global solution has been found.