Physicist Proposes Dark Matter Is Made of Black Holes That Survived Dead Universes
Here’s a fun dark matter solution. The invisible and as yet hypothetical substance could be made of “relic”…
SpaceX quietly whispers the risk of its ambitious AI data centers in space
Elon Musk has been talking up SpaceX’s space-based AI ambitions like they are a done deal. At the…
Mars has air, but almost none of it can keep you alive
For all the drama around getting to Mars, the harder question starts after landing. A person can step…
Photo of Artemis II heat shield looks like an ethereal underwater world, but it’s provided NASA with vital data
You wouldn’t think a resin heat shield would make for a particularly photogenic image, but Orion’s partially-submerged heat…
NASA observes the Sahara from the International Space Station and detects a gigantic eye nearly 50 kilometers wide, whose origin is not as cosmic as it seems
NASA Earth Observatory has spotlighted one of the Sahara’s most recognizable sights, the Richat Structure in Mauritania, often…
The Planet Haul That Changes Everything.
Finding planets used to be a painstaking business. Astronomers would fix their gaze on a handful of carefully…
NASA Plans To Start A Fire On The Moon, Raising New Concerns About Astronaut Safety
A controlled fire on the Moon may sound counterintuitive, yet it sits at the center of a critical…
SpaceX just cut a $60B deal with an AI startup built by 4 MIT dropouts — its CEO is 25 and worth $1.3B
Elon Musk’s SpaceX just made a deal with a coding startup founded by four college kids who dropped…
Physicists Suggest Mysterious “Fifth Force” May Exist In Our Solar System
We know about the four fundamental forces of nature: gravity, electromagnetism, the strong nuclear force, and the weak…
15 expert-checked places to see the 2026 total solar eclipse in Spain, Iceland and Greenland
Looking for inspiration or deep research for the total solar eclipse on Aug. 12, 2026? Stretching across eastern…
A Rare Comet Is Skimming Past Earth This Weekend, and You Can Spot It!
A newly brightening Comet C/2025 R3 (PanSTARRS) is making a striking pass through the inner solar system, reaching…
Black hole GW190521 may be a wormhole from another universe
For just one-tenth of a second in May 2019, the universe delivered a signal that did not fit…