Comets

Solar System

Astronomers recently discovered that Scholz’s star passed close to the Sun 70,000 years ago. Wouldn’t its gravity have sent Oort Cloud comets raining into the inner planets?

Solar System

You can clearly see boulders on comets and asteroids. What are these?

Exoplanets, Observing, Planets, Solar System, The Moon

Perseids reign supreme

Robotic Spaceflight, Solar System

Rosetta’s Philae lander wakes up from hibernation

Robotic Spaceflight, Solar System

Sunset jets on Rosetta’s comet

Solar System, The Moon

Crashing comets may explain mysterious lunar swirls

Robotic Spaceflight, Solar System

Ultraviolet study reveals surprises in Rosetta comet coma

Exoplanets, Observing, Planets, Solar System, The Moon

Venus dazzles at dusk

Robotic Spaceflight, Solar System

OSIRIS discovers balancing rock on Comet 67P

Alien Life, Solar System

Fresh evidence for how water reached Earth found in asteroid debris

Exoplanets, Observing, Planets, Solar System, The Moon

Venus meets Jupiter at dusk

Robotic Spaceflight, Solar System

Rosetta and Philae find comet not magnetized