‘Oumuamua: A Possible Fragment of a Pluto-Like Exoplanet
‘Oumuamua was discovered on October 19, 2017 by the Pan-STARRS telescope in Hawaii and was recognized to be the first interstellar object discovered within our solar system based on its […]
‘Oumuamua was discovered on October 19, 2017 by the Pan-STARRS telescope in Hawaii and was recognized to be the first interstellar object discovered within our solar system based on its […]
A newly identified comet appears to have originated from outside the solar system. Comet C/2019 Q4 (Borisov) was discovered on August 30, 2019. Its trajectory and high velocity, currently 150,000 kilometers […]
Since its arrival at comet 67P/Churyumov-Gerasimenko, the European Space Agency’s Rosetta spacecraft has been surveying the surface and the environment of this curiously shaped body. But for a long time, […]
Data collected by NASA’s Alice instrument aboard the European Space Agency’s Rosetta spacecraft reveal that electrons close to the surface of comet 67P/Churyumov-Gerasimenko — not photons from the Sun, as […]
Please join us for the session on “Determining the Origin and Nature of Prebiotic Species in Comets” at the upcoming AbSciCon meeting this summer, June 15-19 in Chicago, Illinois. This session invites contributions […]
There has been a significant increase in the amount of water “pouring” out of comet 67P/Churyumov-Gerasimenko, the comet on which the Rosetta mission’s Philae lander touched down in November 2014. […]
The closest planet to the sun appears to get hit by a periodic meteor shower, possibly associated with a comet that produces multiple events annually on Earth. The clues pointing […]
Images taken by the Rosetta spacecraft’s OSIRIS imaging system show the portions of the journey its Philae comet lander undertook on Nov. 12, as it approached and then rebounded off […]
All three NASA orbiters around Mars confirmed their healthy status Sunday after each took shelter behind Mars during a period of risk from dust released by a passing comet. Mars […]
A mosaic from the European Space Agency’s Rosetta spacecraft shows “Site J,” the primary landing site on comet 67P/Churyumov-Gerasimenko for the mission’s Philae lander. Rosetta is the first mission to […]
NASA’s extensive fleet of science assets, particularly those orbiting and roving Mars, have front row seats to image and study a once-in-a-lifetime comet flyby on Sunday, Oct. 19. Comet C/2013 […]
The European Space Agency’s Rosetta’s lander, Philae, will target Site J, an intriguing region on comet 67P/Churyumov-Gerasimenko that offers unique scientific potential, with hints of activity nearby, and minimum risk […]
A NASA instrument aboard the European Space Agency’s (ESA’s) Rosetta orbiter has successfully made its first delivery of science data from comet 67P/Churyumov-Gerasimenko. The instrument, named Alice, began mapping the […]
On October 19, 2014, comet C/2013 A1 (Siding Spring) will flyby Mars within ~130,000 km. A coordination workshop was held on August 11, 2014. The workshop was designed to review […]
The European Space Agency’s Rosetta mission has chosen five candidate landing sites on comet 67P/Churyumov-Gerasimenko for its Philae lander. Philae’s descent to the comet’s nucleus, scheduled for this November, will […]
NASA’s Mars Odyssey spacecraft has successfully adjusted the timing of its orbit around Mars as a defensive precaution for a comet’s close flyby of Mars on Oct. 19, 2014. The […]
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 […]
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 […]
Comet C/2013 UQ4 (Catalina) has been observed by NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) spacecraft just one day after passing through its closest approach to the sun. The […]
Surface structures are becoming visible in new images of comet 67P/Churyumov-Gerasimenko taken by the scientific imaging system OSIRIS onboard the European Space Agency’s Rosetta spacecraft. The resolution of these images […]