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NASA's first asteroid samples from deep space land on earth

NASA's first asteroid samples from deep space land on earth


Washington, September 24

NASA’s first asteroid samples fetched from deep space parachuted into the Utah desert on Sunday to cap a seven-year journey.

In a flyby of the earth, the Osiris-Rex spacecraft released the sample capsule from 63,000 miles (100,000 km) out. The small capsule landed four hours later on a remote expanse of military land, as the mothership set off after another asteroid.

Scientists estimate the capsule holds at least a cup of rubble from the carbon-rich asteroid known as Bennu, but won’t know for sure until the container is opened. Some spilled and floated away when the spacecraft scooped up too much and rocks jammed the container’s lid during collection three years ago.

Japan, the only other country to bring back asteroid samples, gathered about a teaspoon in a pair of asteroid missions.

The pebbles and dust delivered on Sunday represent the biggest haul from beyond the moon. Preserved building blocks from the dawn of our solar system 4.5 billion years ago, the samples will help scientists better understand how the earth and life formed.

Osiris-Rex, the mothership, rocketed away on the $1 billion mission in 2016. It reached Bennu two years later and, using a long stick vacuum, grabbed rubble from the small roundish space rock in 2020. By the time it returned, the spacecraft had logged 4 billion miles (6.2 billion km).

NASA’s recovery effort in Utah included helicopters as well as a temporary clean room set up at the Defence Department’s Utah Test and Training Range. The samples will be flown on Monday morning to a new lab at NASA’s Johnson Space Center in Houston. The building already houses the hundreds of pounds (kilograms) of moon rocks gathered by the Apollo astronauts more than half a century ago.

The mission’s lead scientist, Dante Lauretta of the University of Arizona, will accompany the samples to Texas. The opening of the container in Houston in the next day or two will be “the real moment of truth,” given the uncertainty over the amount inside, he said ahead of the landing. — AP 

Bennu may hit planet in 2182

  • Sample capsule released by Osiris-Rex spacecraft landed in Utah on Sunday
  • Launched in Sept 2016, OSIRIS-REx reached carbon-rich asteroid Bennu in 2018
  • Spacecraft spent two years orbiting Bennu before scooping up a cup of rubble
  • Left Bennu in May 2021 for 1.9-bn-km cruise towards earth, releases capsule during flyby
  • Samples will help understand Bennu, which may possibly hit earth in 2182

#NASA #United States of America USA #Washington


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