
Physicists Propose a Simpler, Hotter Origin for the Cosmos
Theorists have found that a “warm” version of cosmic inflation is consistent with known physics, linking it to the hunt for dark matter

Physicists Propose a Simpler, Hotter Origin for the Cosmos
Theorists have found that a “warm” version of cosmic inflation is consistent with known physics, linking it to the hunt for dark matter

Why Do Some Comets Dazzle While Others Fizzle?
A comet’s brightness depends on how it’s made, how and when we see it, and even a bit of unpredictable luck


NASA’s Moon Race Looks like a Losing Bet
Former NASA officials warn that the U.S. looks poised to lose its self-declared race to beat China to the moon

Google Explores Quantum Chaos on Its Most Powerful Quantum Computer Chip
“Quantum echoes” rippling through Google’s quantum computer chip Willow could lead to advances in molecular chemistry and the physics of black holes

Earth Is Getting Darker, Which Could Accelerate Global Warming
The planet’s brightness is dimming—changing rainfall, circulation and temperature

Global Superbugs Surge, Chikungunya Hits Long Island, and Satellites Leak Data
A new WHO report warns of rising antimicrobial resistance, and researchers uncover satellite data leaks and insect surprises.

How to Catch a Rare Comet and a Meteor Shower
A comet visible to the naked eye will make its closest approach to Earth on October 21

When a Galaxy Erupts, What We See Depends on How We See It
Voracious supermassive black holes light up the cores of “active” galaxies across the universe. How we see them, however, is a matter of perspective

How a Space Rock Became a Scientific Breakthrough—And a Black Market Commodity
A massive Somali meteorite containing never-before-seen-on-Earth minerals vanished into the black market, raising ethical questions about science and ownership.

Have Astronomers Finally Found an Exomoon?
Data from the James Webb Space Telescope and other observatories suggests a supervolcanic exomoon may lurk around the giant exoplanet WASP-39b

The U.S. Won’t Win the New Space Race by Defunding NASA
The U.S. wants to remain a superpower in space. It can’t without supporting NASA

A Classic Graphic Reveals Nature’s Most Efficient Traveler
A famous graphic, now updated, compares locomotion in the animal kingdom