Comets
Comet Created Chaos In Mars’ Magnetic Field
NASA's MAVEN spacecraft captured the chaotic rendezvous between Mars and comet Siding Spring in 2014.
We Have Underestimated Our Sun’s Destructive Reach
The Sun causes the destruction of asteroids at a much greater distance than previously thought.
Rosetta’s Philae Lander in Permanent Sleep
ESA's Philae lander, the first spacecraft to successfully soft-land on the surface of a comet and former piggyback partner to Rosetta,…
Comet US10 Catalina: The Final Act
Comet C/2013 US10 Catalina puts on its final act this week through late January, as it crosses through northern hemisphere…
Catch This Season’s ‘Other’ Comet: S2 PanSTARRS
Now is the time to catch binocular Comet C/2014 S2 PanSTARRS, as it tops +8 magnitude ahead of predictions this…
Astro-Challenge: Watch the Moon Occult Venus in the Daytime
The year 2015 saved one of the best astronomical events for last, as the waning crescent Moon occults (passes in…
The Solar Heliospheric Observatory at 20
Flashback to 1995: Clinton was in the White House, Star Trek Voyager premiered, we all carried pagers in the pre-mobile…
Do Comets Explain Mystery Star’s Bizarre Behavior?
The story of KIC 8462852 appears far from over. You'll recall NASA's Kepler mission had monitored the star for four years,…
Comet Catalina Grows Two Tails, Soars at Dawn
Amateur astronomer Chris Schur of Arizona had only five minutes to observe and photograph Comet Catalina this morning before twilight…
It’s Finally Here! Comet Catalina Greets Dawn Skywatchers
If you love watching comets and live north of the equator, you've been holding your breath a l-o-n-g time for…