TUCSON, Ariz. (University of Arizona PR) — Scientists thought asteroid Bennu’s surface would be like a sandy beach, abundant in fine sand and pebbles, which would have been perfect for collecting samples. Past telescope observations from Earth’s orbit had suggested the presence of large swaths of fine-grain material called fine regolith that’s smaller than a few centimeters.
GREENBELT, Md. (NASA PR) — In an interplanetary faux pas, it appears some pieces of asteroid Vesta ended up on asteroid Bennu, according to observations from NASA’s OSIRIS-REx spacecraft. The new result sheds light on the intricate orbital dance of asteroids and on the violent origin of Bennu, which is a “rubble pile” asteroid that coalesced from the fragments of a massive collision.
TUCSON (PSI PR) — Impact cratering both produces new regolith and causes seismic events that can degrade and erase small craters on the surface of asteroids, a paper by Planetary Science Institute Senior Scientist James Richardson says.
OSAKA, Japan (Osaka University PR) — Understanding the origin and time evolution of near-Earth asteroids (NEAs) is an issue of scientific interest and practical importance because they are potentially hazardous to the Earth. However, when and how these NEAs were formed and what they suffered during their lifetime remain enigmas.
1st International Announcement of Opportunity for HAYABUSA Sample Investigation
JAXA PR — Japan Aerospace Exploration Agency (JAXA) has been engaged in initial analysis* of Itokawa’s sample brought back by HAYABUSA. On this occasion we would like to inform you of offering the announcement of opportunity for HAYABUSA Sample Investigation.
Through the peer review, JAXA will provide HAYABUSA sample to researcher who submits research proposal in the framework of this Announce of Opportunity (herein after referred as “AO”). This AO is planned to be conducted a few times. The 1st International AO issues on January 24th 2012.