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The shadow nebula LDN 1245 is located in the constellation Cassiopeia.

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if Mars weren't there?"

The image shows just how large and devastating these events can be.

On January 15, 2006, NASA's Stardust spacecraft returned to Earth to drop off a capsule that contained the first samples of a comet and interstellar dust.

The noisy fandom is about to have a field day with Star Trek: Starfleet Academy.

Space school is officially in session and here's your center seat invitation!

NASA leaders said the Crew-11 mission's astronaut medical evacuation shows how the agency is prepared to handle the unexpected.

"This is a structure we've never seen before, so it could be a new class of dark object."

NASA is returning four astronauts to Earth early from the International Space Station due to a medical concern with one of the Crew-11 astronauts. Here's the latest news.

Find out what you can see in the night sky for tonight, from planets and stars to dazzling meteor showers.