
Human Missions to Mars Must Search for Alien Life, New Report Finds
A major new study lays out plans for crewed missions to Mars, with the search for extraterrestrial life being a top priority

Human Missions to Mars Must Search for Alien Life, New Report Finds
A major new study lays out plans for crewed missions to Mars, with the search for extraterrestrial life being a top priority

Astronomers Spot the Most Ancient Supernova Ever Observed
Astronomers have sighted the oldest known stellar explosion, dating back to when the universe was less than a billion years old


Black Hole Caught Blasting Matter into Space at 130 Million MPH
X-ray space telescopes caught a supermassive black hole flinging matter into space at a fifth of the speed of light

This Weekend’s Geminids Meteor Shower Should Be Spectacular
As far as annual meteor showers are concerned, 2025 has saved the best for last. This year’s Geminids are not to be missed

Have Astronomers Found the True ‘Star of Bethlehem’?
A scientist has identified a possible astronomical explanation for the Star of Bethlehem, as described in the Bible

Astronauts, Billionaires and Memes Collide in John Scalzi’s Cheesy Moon Book
Scientific American talks to the author of When the Moon Hits Your Eye, one of our best fiction picks for 2025

China’s First Reusable Rocket Fails, but the Race Is Just Beginning
A partially successful test of China’s Zhuque-3 rocket shows that other countries are rapidly catching up with the U.S in the race for reusable rocketry

Cosmic magnification is one of the universe’s weirdest optical illusions
In our topsy-turvy universe, sometimes the farther away an object is, the bigger it seems to be

Can We Image Alien Earths? This Newfound Object Could Show the Way
Using direct imaging, astronomers have found a brown dwarf that could help test technology for taking snapshots of Earth-like exoplanets

NASA Faces Its Future at Jared Isaacman’s Confirmation Hearing
Jared Isaacman—the presumptive next leader of NASA—answered questions about his plans for the future of U.S. space exploration on Wednesday

Scientists Just Tore Up a Major Particle Physics Theory
New results from the MicroBooNE experiment at Fermilab found no evidence of a hypothetical fourth flavor of neutrino

Satellites Swarming Low-Earth Orbit Threaten Space Telescopes
Proliferating satellites are beginning to harm the science work of the beloved Hubble Space Telescope and other observatories