By studying impact marks on the surface of asteroid Bennu—the target of NASA’s OSIRIS-REx mission—a team of researchers led by the University of Arizona has uncovered the asteroid’s past and revealed that despite forming hundreds of millions of years ago, Bennu wandered into Earth’s neighborhood only very recently. Source: https://phys.org/news/2020-10-asteroid-scars-stories.html…
Tag: University of Arizona
OSIRIS-REx successfully stows sample of asteroid Bennu
NASA’s University of Arizona-led OSIRIS-REx mission has successfully stowed the spacecraft’s Sample Return Capsule and its abundant sample of asteroid Bennu. On Oct. 28, the mission team sent commands to the spacecraft, instructing it to close the capsule—marking the end of one of the most challenging phases of the mission. Source: https://phys.org/news/2020-10-osiris-rex-successfully-stows-sample-asteroid.html…
OSIRIS-REx spacecraft collects large sample of asteroid surface material, NASA confirms
Two days after touching down on asteroid Bennu, NASA’s University of Arizona-led OSIRIS-REx mission team received images confirming that the spacecraft has collected more than enough material to meet one of its main mission requirements—acquiring at least 2 ounces, or 60 grams, of the asteroid’s surface material. Source: https://phys.org/news/2020-10-osiris-rex-spacecraft-large-sample-asteroid.html…
NASA’s Probe Sampled Too Much From Asteroid Bennu and Now It’s Leaking
Iwastheone shares some space news from OPB: A NASA spacecraft sent out to collect a sample of rock and dust from an asteroid has nabbed so much that it’s created an unexpected problem. Rocks are jammed in the device in a way that’s keeping a Mylar flap open, creating a gap that’s letting some of the collected pebbles and dust drift…
Top 10 things to know about asteroid Bennu
Take a video tour of asteroid Bennu’s remarkable terrain and read a list of 10 cool things scientists know about this pristine remnant from the early days of our solar system. Source: https://earthsky.org/space/top-10-things-to-know-about-asteroid-bennu-video-tour…
Radar reveals 3 more subsurface polar lakes on Mars
Scientists with the European Space Agency say that the Mars Express orbiter has found evidence of three more salty lakes below Mars’ south pole. The discovery comes two years after the first lake was detected in 2018. Source: https://earthsky.org/space/3-more-subsurface-lakes-mars-south-pole…
A NASA Mission Is About To Capture Carbon-Rich Dust From a Former Water World
sciencehabit writes: OSIRIS-REx is ready to get the goods. On 20 October, after several years of patient study of its enigmatic target, NASA’s $800 million spacecraft will finally stretch out its robotic arm, swoop to the surface of the near-Earth asteroid Bennu, and sweep up some dust and pebbles. The encounter, 334 million kilometers from Earth, will last about 10 seconds….
Billion-year-old Martian dunes reveal planet’s history
The discovery of near-perfectly preserved billion-year-old Martian dunes is helping scientists to unravel the geologic and climatic history of the red planet. Source: https://earthsky.org/space/billion-year-old-martian-dunes-reveal-planet-history…
Scientists use AI to find tiny craters on Mars
All these years, NASA scientists have laboriously sifted through spacecraft images, to identify and classify markings on Mars. Now they’re using a new “classifier,” powered by artificial intelligence. What takes a human 40 minutes takes the AI tool an average of just 5 seconds. Source: https://earthsky.org/space/nasa-artifical-intelligence-spots-craters-on-mars…
Black Hole Photo Makes Einstein’s Theory ‘500 Times Harder to Beat’
“The first image of a black hole, captured in 2019, has revealed more support for Albert Einstein’s theory of general relativity,” reports CNN, adding that the new finding suggests his theory is now 500 times harder to beat. [W]hile light can’t escape the inside of a black hole, it’s possible for light to make a getaway in a region around the…