This image of comet 67P/Churyumov-Gerasimenko, taken by Rosetta’s Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS) on Sept. 20, from a distance of 4.5 miles (7.2 kilometers), shows jets of dust and gas streaming into space from the neck of the comet’s nucleus. Images of the comet nucleus, taken by Rosetta earlier in the summer, […]
NASA’s newest orbiter at Mars, MAVEN, took precautions to avoid harm from a dust-spewing comet that flew near Mars today and is studying the flyby’s effects on the Red Planet’s atmosphere. The MAVEN spacecraft — full name Mars Atmosphere and Volatile Evolution — reported back to Earth in good health after about three hours of […]
After a decade-long journey chasing its target, the European Space Agency’s Rosetta, carrying three NASA instruments, became the first spacecraft to rendezvous with a comet. The last of a series of 10 rendezvous maneuvers that began in May, to adjust Rosetta’s speed and trajectory to gradually match those of comet 67P/Churyumov-Gerasimenko, occurred today (Aug. 6, […]
NASA is taking steps to protect its Mars orbiters, while preserving opportunities to gather valuable scientific data, as Comet C/2013 A1 Siding Spring heads toward a close flyby of Mars on Oct. 19. The comet’s nucleus will miss Mars by about 82,000 miles (132,000 kilometers), shedding material hurtling at about 35 miles (56 kilometers) per […]