Is dark matter's main rival theory dead? There's bad news from the Cassini spacecraft and other recent tests
One of the biggest mysteries in astrophysics today is that the forces in galaxies do not seem to add up.
By Elizabeth Howell published
How do you get ready for flying to the moon? The Artemis 2 astronauts practiced a day in space ahead of their historic liftoff in 2025 to see what living in the Orion spacecraft is like.
By Ben Turner published
A new imaging technique, which captured frozen lithium atoms transforming into quantum waves, could be used to probe some of the most poorly understood aspects of the quantum world.
By Henk Hoekstra published
Clumps of dark matter reveal their presence by distorting the shapes of more distant galaxies, just like waves on the surface of a swimming pool distort the pattern of tiles on the bottom.
By Michael Garrett published
The rise of AI might explain why the search for extraterrestrial intelligence (SETI) has yet to detect the signatures of advanced technical civilizations elsewhere in the galaxy.
By Brett Tingley published
Elon Musk isn't convinced that aliens have ever visited Earth, according to remarks the SpaceX CEO and founder made during a conference on Tuesday (May 7).
By Joe Rao published
The International Space Station, the largest and brightest object now orbiting Earth, will provide excellent views for skywatchers across much of the Northern Hemisphere for much of May.
By Robert Z. Pearlman published
Get ready space fans, Lego is about to launch two sets that can take you from the moon to edge of our cosmic neighborhood: Lego Icons NASA Artemis Space Launch System and Lego Art Milky Way Galaxy.
By Jeff Spry published
A review of Netflix's new 12-episode dystopian sci-fi series, "Goodbye Earth."
By Robert Z. Pearlman published
What do you do for an encore after you have virtually transported thousands of Houstonians to the International Space Station? If you are Felix & Paul, you invite them back, to fly to the moon.
By Robert Lea last updated
Reference As the Artemis program aims to return humanity to the moon and beyond, the Artemis Accords lay out a framework for nations collaborating in this effort.