Researchers have long believed that Mars once had a thick, carbon dioxide-rich atmosphere and liquid water on the planet’s surface. That carbon dioxide and

“Phantom” dark energy existed long ago, observations suggest

New data further challenge the best scientific theory of the history and the structure of the universe. But a separate recent result reinforces it.

A new study published in PLOS Genetics has identified an extreme mutational hotspot within the genome of Pseudomonas fluorescens, providing unprecedented insight into the relationship between gene regulation and mutation rates. The findings could have broad implications for understanding bacterial e...

Instantly turning a material from opaque to transparent, or from a conductor to an insulator, is no longer the stuff of science fiction. For several years now, scientists have been using lasers to control the properties of matter at extremely fast rates: during one optical cycle of a light wave. But...

This image captured by Firefly Aerospace’s Blue Ghost lander on March 3 shows sunrise on the lunar surface.

SILVER SPRING, MD—As mass firings of career experts and scientists continued to roil the federal government, officials confirmed Friday that cuts to the National Oceanic and Atmospheric Administration had left a single set of wind chimes as the sole predictor of approaching hurricanes. “In the wake ...

It’s neither fast nor food, but a spectacular object called HH 30 looks appetizing for astronomers in a new image from the James Webb Space Telescope

A Milky Way collision with a supermassive black hole might be closer than we thought.

It only took less than 10 minutes.

"Black holes really do sit at the frontier of human understanding."