Tech & Science Nasa: The Osiris-Rex probe is preparing to land on the asteroid Bennu to take a sample
SpaceX's next astronaut mission for NASA has been pushed to November following an issue with its rocket engines
NASA's next mission with SpaceX will launch "no sooner than early-to-mid November," the agency announced Saturday. That mission, called Crew-1, will ferry four astronauts to the International Space Station and back. The launch was previously slated for Halloween. The delay allows SpaceX to investigate an issue with its Falcon 9 rocket engines. Visit Business Insider's homepage for more stories. NASA's four-astronaut team will have to wait a little longer to visit the International Space Station.
The sample taken during this stealth contact must then be brought back to Earth to be analyzedSPACE - The sample taken during this stealth contact must then be brought back to Earth to be analyzed
It left Earth in 2016. After four years of travel and observation,must descend this Tuesday on the surface of the asteroid Bennu for , in the hope of bringing them back to Earth. With the hope that these discoveries can inform us .
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The asteroid has been carefully chosen for this mission.A touch of a few seconds and its surface was supposed to be covered with sand "like a beach," as scientists believed based on telescope observations, told a conference call Dante Lauretta of the University of Arizona, scientific leader of the mission. Such a surface would have ensured a safe sampling operation.
But when we arrived near the pebble at the end of 2018, the images showed that it was actually covered with rocks. “The surface is rough, rugged, rocky,” the scientist described. The team spent 2019 painstakingly mapping the surface to select the most secure site for collection: Nightingale Crater.
This Tuesday, the probe must slowly approach Bennu, then deploy a sampling arm and target an area eight meters in diameter, relatively flat, as wide as four parking spaces. "Years of preparation and hard work by this team will boil down to this contact with the ground for five to ten seconds," summarized Mike Moreau, deputy project manager at NASA.
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Just 3 more days until I collect a sample from asteroid Bennu! Celebrate with me and my team as we look back at all the challenges we’ve overcome to get to this point.- NASA's OSIRIS-REx (@OSIRISREx) For a handful of rubble
When touching the ground, the robot will blow nitrogen, which will make grains fly which will then be recovered by the arm of Osiris-Rex. The goal is to collect at least 60 grams. According to Mike Moreau, there is up to a 30% chance that the arm will not recover enough material, for example if the contact is on a large stone instead of finer grains. Engineers over 320 million kilometers away cannot guarantee absolute precision. If this attempt is not successful, a second could take place in January in another crater.
In March 2021, Osiris-Rex will begin its long journey back to Earth. It will eventually release the container containing the samples for a landing in the Utah desert, slowed down by a parachute, on September 24, 2023. Before that, the Terrans prepare to analyze the samples from another asteroid, Ryugu, to whichlast year. The return to Earth of this dust is scheduled for December 6.
Three-man US-Russian crew returns to Earth from ISS .
An American astronaut and two Russian cosmonauts touched down on the Kazakhstan steppe on Thursday, completing a 196-day mission that began with the first launch under lockdown conditions. NASA astronaut Chris Cassidy and Russian cosmonauts Anatoly Ivanishin and Ivan Vagner landed around 150 kilometres (90 miles) southeast of the Kazakh city of Zhezkazgan at 0254 GMT, footage broadcast by the Russian space agency Roscosmos showed. A NASANASA astronaut Chris Cassidy and Russian cosmonauts Anatoly Ivanishin and Ivan Vagner landed around 150 kilometres (90 miles) southeast of the Kazakh city of Zhezkazgan at 0254 GMT, footage broadcast by the Russian space agency Roscosmos showed.