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The Doctor checks in to a very unusual hotel – here's how to watch "Doctor Who" Christmas special "Joy to the World" online on BBC iPlayer in the UK and on Disney Plus in the US.

The Christmas evening sky is especially rewarding now. The eastern sky is filled with brilliant stars, a sort of a celestial Christmas tree.

NASA has pushed its first two crewed Artemis moon missions back to 2026 and 2027, and the move could have big ramifications.

An explanation of the dead robot in the new James Gunn "Superman" teaser trailer

A bright streak of light in the pre-dawn skies above the U.K. could easily be mistaken for Santa Claus getting an early start to his Christmas deliveries.

Space.com's image of the day rounds up the most awe-inspiring space photos right here, with a new image everyday.

On Dec. 23, 1672, Italian astronomer Giovanni Cassini discovered Rhea, Saturn's second-largest moon. Rhea is made up of rock and ice and is covered in craters.

A recap of Apple TV+'s "Silo" Season 2 Episode 6, "Barricades"

Parker Solar Probe will make an immensely close pass by the sun on Dec. 24 — but its scientists aren't worried. They have faith in their explorer.

Astronomers have accidently spotted a new type of cosmic explosion called a "millinova" triggered by white dwarfs feeding on stars. If that sounds familiar get ready for a suprise!