An asteroid or comet traveled from beyond the stars to make a close approach to Earth.
More Than Meets The Eye
Asteroids and comets are far more similar than we once thought.
Manx Comet
A comet without a tail could hold clues to the formation of our solar system.
Amateur Astronomers Capture Jupiter Impact
On Monday amateur astronomer John Mckeon captured an unusual flash on the limb of Jupiter while he was filming the planet through a telescope.
Was The Wow! Signal Due To A Comet?
The Wow! signal may have been caused by comets.
Spooky The Dead Comet
Today the object 2015 TB145 will make a “close” flyby of Earth. It’s been nicknamed Spooky due to its Halloween arrival date, and we’re already starting to learn a few things about it.
Alcohol In Comet Lovejoy Points To Early Chemistry
Comets are frozen remnants from the formation of our solar system, which is why it’s interesting that ethyl alcohol has been observed in the tail of comet Lovejoy.
The Comet That Was Once Two
One of the striking features of comet 67P/Churyumov–Gerasimenko is its “rubber duck” shape with two distinct lobes. We now know the ducky comet was once two comets.
Electric Avenue
New data from Rosetta shows that electrons play a role in the creation of cometary atmospheres.