spacetoday.net: space news from around the webin association with SpaceNews


Rosetta comet has double nucleus
Posted: Fri, Jul 18, 2014, 8:38 AM ET (1238 GMT)
Comet Churyumov-Gerasimenko nucleus seen by Rosetta, July 2014 (ESA et al.) The comet that is the target of a European mission appears to have a nucleus comprised of two bodies, not one, which could complicate plans to land a spacecraft on the comet. Images released this week from ESA's Rosetta spacecraft show that the nucleus of comet 67P/Churyumov-Gerasimenko appears to be a contact binary: two distinct bodies touching each other, vaguely resembling a rubber duck. How the nucleus got that shape isn't clear yet to planetary scientists. The comet is the destination of Rosetta, launched by ESA in 2004 on a convoluted trajectory that required three Earth gravity assists and one Mars gravity assist to reach the comet. Rosetta will rendezvous with the comet next month, and is planned to deploy a small lander, Philae, to the surface of the nucleus in November. The nucleus's unusual shape could make that landing more difficult.
<<previous article   next article>>
news in brief
China launches Wentian space station module
Posted: Fri, Jul 29 6:58 PM ET (2258 GMT)

SpaceX performs two Starlink launches
Posted: Fri, Jul 29 6:53 PM ET (2253 GMT)

European, Russian ISS crewmembers perform spacewalk
Posted: Fri, Jul 29 6:48 PM ET (2248 GMT)

news links
Wednesday, August 10
Viasat / Inmarsat merger inquiry
UK Competition and Markets Authority — 6:28 am ET (1028 GMT)
CMA adds heat to Viasat, Inmarsat merger
Mobile World Live — 6:26 am ET (1026 GMT)
Inmarsat deal to be investigated
The Times of London — 6:25 am ET (1025 GMT)


about spacetoday.net   ·   info@spacetoday.net   ·   mailing list