101955 Bennu - Wikipedia
101955 Bennu (provisional designation 1999 RQ 36) is a carbonaceous asteroid in the Apollo group discovered by the LINEAR Project on 11 September 1999. It is a potentially hazardous object that is listed on the Sentry Risk Table and has the second highest cumulative rating on the Palermo Technical Impact Hazard Scale . [ 9 ]
Ten Things to Know About Bennu - NASA
2020年10月16日 · Bennu is a carbonaceous asteroid that hasn’t undergone drastic, composition-altering change, meaning that on and below its deeper-than-pitch-black surface are chemicals and rocks from the birth of the solar system.
Bennu - NASA Science
Bennu is a relatively small asteroid that passes close to Earth about every six years. Bennu was the target of NASA's first asteroid sample return mission, OSIRIS-REx. The spacecraft delivered a sample of Bennu to Earth on Sept. 24, 2023.
NASA’s Bennu Asteroid Sample Contains Carbon, Water
2023年10月11日 · Initial studies of the 4.5-billion-year-old asteroid Bennu sample collected in space and brought to Earth by NASA show evidence of high-carbon content and water, which together could indicate the building blocks of life on Earth may be found in the rock.
101955 Bennu - Science@NASA
Bennu is a carbon-rich asteroid that is about one-third of a mile (half a kilometer) wide at its equator. An ancient relic of our solar system’s early days, asteroid Bennu has seen more than 4.5 billion years of history.
Surprise – Again! Asteroid Bennu Reveals its Surface is Like ...
2022年7月7日 · The asteroid presented its first surprise in December 2018 when NASA’s spacecraft arrived at Bennu. The OSIRIS-REx team found a surface littered with boulders instead of the smooth, sandy beach they had expected based on observations from Earth- and space-based telescopes.
Bennu asteroid samples get close-up look at Brown for clues ...
6 天之前 · In fact, scientists calculate a 1 in 2,700 in chance that Bennu could hit Earth in the year 2182. That is part of the reason NASA chose Bennu to sample and adds to the reverence planetary scientists have for this asteroid which is a fragment of a bigger asteroid.