•   
  •   
  •   

Technology NASA picks site near "Mount Doom" to collect asteroid sample

09:10  13 december  2019
09:10  13 december  2019 Source:   cbsnews.com

Active-shooter training, drill to shut Mount Vernon City Hall much of Thursday

  Active-shooter training, drill to shut Mount Vernon City Hall much of Thursday Mount Vernon City Hall will be closed most of Thursday afternoon for an active-shooter drill. Offices will be understaffed in the morning while employees are trained for a real-life threatThe building will be shut for much of the afternoon Thursday — with a skeletal staff the rest of the day — as employees take part in active-shooter training and emergency responders conduct a drill to test their preparedness for an active-shooter and the casualties that could result, Mayor Andre Wallace announced Wednesday.

NASA selects site where probe will attempt to collect samples of an asteroid . It will not be easy. A towering mound of boulders half-jokingly dubbed " Mount Doom " rears up just to one side of the sample site , an obstruction that will require OSIRIS-REx to execute an extremely precise touch-and-go

NASA ’s OSIRIS-REx must avoid ‘ Mount Doom ’ to return a sample of the asteroid Bennu. The spacecraft will attempt to retrieve material from Lauretta is confident that OSIRIS-REx will safely snag a sample from Nightingale. But as a backup, the team has also picked a similarly sized crater near

NASA's OSIRIS-REx science probe, orbiting a small asteroid called Bennu for the past year, will move in for an attempt to snag rock and soil samples next summer, targeting a site known as Nightingale that offers the best balance of risk and science return, mission managers announced Thursday.

Rescuers hunt man missing after livestreaming Mt Fuji climb

  Rescuers hunt man missing after livestreaming Mt Fuji climb Rescuers in Japan are searching for a man who appears to have fallen down part of Mount Fuji as he was live-streaming his climb up the country's highest peak, police said Wednesday. The man, whose name has not been made public, was live broadcasting from the snow-covered upper reaches of Mount Fuji on Monday afternoon when he appeared to slip and begin falling.

NASA picks site near " Mount Doom " to collect asteroid sample . The winning site offers the best balance between risk and science reward, researchers Tessa Majors, an 18-year-old freshman at Barnard College, was stabbed to death in a park near the Manhattan campus in what police described

Engineers picked the Nightingale site from four final candidate spots on Bennu, arguing it could One of the rocks has even been nicknamed Mount Doom , since it’s extra tall and peak-shaped. Currently, NASA is hoping to grab a sample from Nightingale in the summer of 2020, with the goal of collecting

It will not be easy. A towering mound of boulders half-jokingly dubbed "Mount Doom" rears up just to one side of the sample site, an obstruction that will require OSIRIS-REx to execute an extremely precise touch-and-go approach.

"It's a substantial, building-size obstruction, and we're trying to get into a crater that's on the order of a few parking lot spaces wide," said Dante Lauretta, the OSIRIS-REx principal investigator at the University of Arizona.

"So we are doing a really tight job parking, and we're aware that we have hazards around us. So precision navigation to that sample material is our biggest challenge."

Japan's Hayabusa2 spacecraft leaves Ryugu asteroid, heads back to Earth

  Japan's Hayabusa2 spacecraft leaves Ryugu asteroid, heads back to Earth The Hayabusa2 probe begins its long journey back to Earth with samples of the asteroid on board.But everything good must come to an end and Hayabusa2 is now on its way back home.

NASA picks site near " Mount Doom " to collect asteroid sample . Over the course of the night, NASA points out it will also be possible to see five different planets . Looking southwest, Jupiter will be visible just after sunset, followed by Venus, the brightest planet in the sky, as twilight ends.

NASA picks site near " Mount Doom " to collect asteroid sample . Tessa Majors, an 18-year-old freshman at Barnard College, was stabbed to death in a park near the Manhattan campus in what police described as an attempted robbery.

Engineers have developed software that will enable OSIRIS-REx to abort an approach to Nightingale if it turns out the probe cannot safely reach its target. If an abort stirs up rocks and prevents a second attempt, the spacecraft will move to a backup site known as Osprey.

Either way, Lauretta is confident OSIRIS-REx will succeed in the end, bringing samples of Bennu back to Earth in 2023.

"Just thinking that we're going to get this sample back to Earth sends chills down my spine," he said during an update from the American Geophysical Union's fall meeting in San Francisco.

OSIRIS-REx — the convoluted acronym stands for Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer — was launched in September 2016 and slipped into orbit around Bennu late last year.

Since then, it has been using an advanced camera, two mineral sniffing spectrometers, a laser altimeter and a student-managed X-ray imaging system to map Bennu's surface in extraordinary detail. The asteroid is slightly wider than the Empire State Building is tall with a diameter of about 1,614 feet and a mass is estimated at about 85.5 million tons.

Japan's Hayabusa2 is returning to Earth with asteroid samples

  Japan's Hayabusa2 is returning to Earth with asteroid samples Over the past year-and-a-half, JAXA's Hayabusa2 spacecraft served as asteroid Ryugu's companion in the vast emptiness of space. It got close enough to fire bullets into its surface and even detonated bombs to disturb the ground and scoop up samples it can take back home. Now, the spacecraft and the samples it collected have started making their way back to Earth. Hayabusa2 has left the asteroid on November 13th 10:05AM Japan time (November 12th 8:05PM EST). It has captured photos of Ryugu as it moved away and will continue taking pictures of the asteroid over the next five days.

NASA picks site near " Mount Doom " to collect asteroid sample . The winning site offers the best balance between risk and science reward, researchers say. 3H ago. The final full moon of the decade is at 12:12 a.m. on 12/12.

NASA picks site near " Mount Doom " to collect asteroid sample . The winning site offers the best balance between risk and science reward, researchers Tessa Majors, an 18-year-old freshman at Barnard College, was stabbed to death in a park near the Manhattan campus in what police described

OSIRIS-REx is equipped with a "Touch-and-Go Sample Acquisition Mechanism," or TAGSAM, on the end of a 10-foot-long robot arm. The collect samples, the probe will creep up to Bennu, pressing the pie pan-shaped TAGSAM collector against the asteroid's surface for about five seconds before backing away.

On contact with the surface, a jet of nitrogen gas will stir up soil and small rocks that will then be captured by TAGSAM. The material will be placed in a sample return container for a two-and-a-half-year flight back to Earth. Landing in Utah is expected in September 2023.

For TAGSAM to work properly, mission planners hoped to find relatively smooth areas, free of large rocks and obstructions.

"When we first got there, the most obvious feature that we saw were these abundant, very large boulders and overall a rough and rugged surface very different than what we designed the spacecraft to sample," Lauretta said.

"We were (planning for) sampling areas that were 25 meters (80 feet) across, and quite honestly, I thought it was going to be obvious from the first images where the sample regions were and that it was going to be a straightforward site selection. And it was nothing of the sort."

After mapping Bennu, the team came up with four candidate sample sites. When all was said and done, Nightingale was the winner.

"We recognize that this does have some hazards around it, and so we are doing a lot of work to make sure that we're targeting the safe regions," said Lauretta. "But this one really came out on top because of the scientific value.

"The high latitudes means that it stays relatively cool, and the primary objective of OSIRIS-REx is to bring back organic material and water-bearing material from the early solar system. Being in those high latitudes gives us the best chance to preserve that kind of material."

Teen discovers new planet while interning with NASA .
The newly identified world is 6.9 times bigger than Earth and orbits two suns.Wolf Cukier, 17, an intern at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, last July, was tasked with going through data on star brightness from the facility’s ongoing Transiting Exoplanet Survey Satellite mission or TESS. The Scarsdale High School senior was looking at a foreign system located 1,300 light-years from Earth. He said he then observed what appeared to be a slight darkness in one of the system's suns.

—   Share news in the SOC. Networks

Topical videos:

usr: 4
This is interesting!