Latest about comets
Proof of 'Planet Nine' May Be Sewn into Medieval Tapestries
Scientists turn to 1,000-year-old data in the hunt for a missing planet.
Something Violent Happened to Our Solar System's First Interstellar Visitor
An interstellar object called 'Oumuamua has confounded astronomers ever since it passed through our solar system in October of last year.
Astronomers Detect a Swarm of Tiny Objects Orbiting an Alien Sun
These dusty comets, speeding through distance space, are the smallest objects ever detected in another star system.
Life on Earth May Have Started with a Cosmic Splash
Could the building blocks for life on Earth have been delivered by meteorites crashing into ponds of water 4 billion years ago?
The Moon's Interior Could Contain Lots of Water, Study Shows
Ancient volcanic deposits on the moon reveal new evidence about the lunar interior, suggesting it contains substantial amounts of water.
Comet Likely Didn't Cause Bizarre 'Wow!' Signal (But Aliens Might Have)
A source of mysterious radio signals could be from a passing comet, but astronomers are skeptical.
A Strange Green Comet Is Heading Our Way
Comet 45P/Honda-Mrkos-Pajdusakova, returning to the inner solar system after more than five years, will be visible this week with binoculars or a small telescope.
