New video shows Arecibo's receiver platform breaking loose and falling onto the radio telescope dish 400 feet below. No one was injured.

Where did the famous mystery Wow! signal, detected in 1977, come from? Astronomer Alberto Caballero might have pinpointed the host star. It's a sunlike star 1,800 light-years away, in the direction of the center of our Milky Way.

November 30 marked the official end of the record-breaking 2020 Atlantic hurricane season, although more storms are still possible. Why did 2020 have so many storms? And what does climate change have to do with it?

These next few nights - December 2 and 3 - the bright waning gibbous moon shines in front of the constellation Gemini the Twins. Find this constellation, and you've found the radiant point for the Geminid meteor shower, due to peak on December 13-14.

Asteroid 2000 WO107 passed Earth safely on November 29, at 11 times the moon's distance. Astronomers at Goldstone bounced radar signals from its surface and discovered it's 2 asteroids that touched, and stuck.

Read a list of the phases of the moon for all of 2021.

Cassiopeia - sometimes called The Lady of the Chair - is famous for having the shape of a telltale W or M.

Full moon was last night, November 29-30, 2020. There was a faint penumbral eclipse of the moon. Tonight's moon is still near the bright red star Aldebaran in the constellation Taurus. Eclipse photos here.

On December 21, 2020, Jupiter and Saturn will be only 1/5 of a moon-diameter apart! Guy Ottewell offers insights and charts showing a magnified (telescopic) view of their once-in-20-years great conjunction.

For the southernmost US and similar latitudes, the earliest sunsets of the year are happening now. Your earliest sunset depends on your latitude, but always comes before the winter solstice.