The Alpha Monocerotids happened as predicted, even if not quite as we expected.
Circle the date November 21st on your calendar, when a brief but potentially spectacular meteor storm might light up the night.
A potentially hazardous asteroid makes a flyby of Earth this Friday, offering amateurs with modest telescopes a chance to ride along.
Four comets, a famous variable star, and sprinkles of dust from Halley's Comet are highlights of the October sky.
Only the second object thus far to visit the solar system from interstellar space, Comet Borisov is expected to reach perihelion in December. What can we see now?