
Get Lost in This Dazzling New Map of the Cosmos
NASA’s newest space telescope has unveiled a stunning map of the cosmos in infrared

Get Lost in This Dazzling New Map of the Cosmos
NASA’s newest space telescope has unveiled a stunning map of the cosmos in infrared

If I Stop the World, Will I Melt with You?
Depending on how you look at it, this catchphrase from a 1980s pop song is decently accurate: you can actually melt the planet if you stop its turning


Satellites Used to Have Months to Avoid Collisions—Now They Have Days
In the era of mega constellations, spacecraft typically have less than a week to avoid crashes

Igloos on Mars? How Future Astronauts Could Use Ice to Survive
Humans traveling to Mars will need protective habitats to live on the harsh surface. Ice could help

Jared Isaacman Confirmed to Head NASA at Pivotal Moment for Space Science
Billionaire Jared Isaacman is taking the reins at NASA at a challenging time for the space agency, as it faces budget cuts and technical hurdles that could scuttle its most ambitious missions

This Planet Is the Shape of a Lemon. That May Be the Least Weird Thing about It
Astronomers using the James Webb Space Telescope have discovered a bizarre-looking exoplanet that defies explanation

New Views of Solar System Moons Complicate Ocean Worlds Theory
Oceans hiding within the crusts of distant moons are tantalizing targets for scientists looking for life beyond Earth

Strange Cosmic Blast May Be First-Ever Superkilonova Observed
The combination of a supernova and a kilonova may have produced a rare space explosion that astronomers have never seen before

Can Labs on Earth Solve the Mystery of Mars’s Most Exciting Rock?
New laboratory studies could shed light on a rock containing potential signs of alien life that’s stranded on Mars

How to See Interstellar Comet 3I/ATLAS as It Swings by Earth One Last Time
This week marks the last chance for backyard astronomers to see interstellar Comet 3I/ATLAS before it races on its journey back to outer space

Science Carries On. Here Are Our Top Topics for 2026
Whether space, health, technology or environment, here are the issues in science that the editors of Scientific American are focusing on for 2026

Mysterious Bright Flashes in the Night Sky Baffle Astronomers
Celestial transients shine furiously and briefly. Astronomers are just beginning to understand them