The race to mine the moon is on – and it urgently needs some clear international rules
There are billions of dollars in it for companies able to kickstart mining operations, even if such returns are still years away.
Big Bear glows with big stars | Space photo of the day for Dec. 31, 2025
Bears, stars, Battlestar Galactica
Flat Earth, spirits and conspiracy theories — experience can shape even extraordinary beliefs
Why do people often adopt and develop beliefs that lack strong supporting evidence?
ISS astronaut snaps stunning nighttime photo of Florida and Cuba | Space photo of the day for Dec. 29, 2025
The image offers a rare look at how Earth's surface and atmosphere interact after sunset.
Event horizon hunt: A black hole word search
Hunt for key terms that define one of the universe's most mind-bending phenomena—from event horizons to singularities.
8 astronomy discoveries that wowed us in 2025
Here are eight of the most spectacular astronomical discoveries of 2025.
Space.com headlines crossword quiz for week of Dec. 22, 2025: Which NASA observatory just completed its first sky map?
Test your space smarts with our weekly crossword challenge, crafted from Space.com's biggest headlines.
Dark matter may be made of pieces of giant, exotic objects — and astronomers think they know how to look for them
Searches for dark matter particles have come up empty so far, driving theorists to get more creative with their ideas.
Most normal matter in the universe isn’t found in planets, stars or galaxies – an astronomer explains where it’s distributed
While space is often referred to as a vacuum, it isn't completely empty.
The most exciting exoplanet discoveries of 2025
New discoveries and fresh looks at familiar worlds show how far exoplanet science has come — and how much remains unknown.