Refresh
Thursday, Feb. 26: A celestial rectangle (after dark)
This evening, Gemini hosts a slow-motion rendezvous. After dark, look…

Refresh
This evening, Gemini hosts a slow-motion rendezvous. After dark, look…

During the ”snowball Earth” period about 700m years ago, Earth’s climate shut down. The planet was encased in ice and insulated from seasonal variations: spring, summer, autumn and winter all stopped. Or at least that was the theory.
Recent…

February 25, 2026
2 min read
Add Us On GoogleAdd SciAm
Chimpanzee pee reveals how our primate cousins are getting drunk on fermented fruit
A urinalysis shows that these apes ingest significant amounts of alcohol, providing new clues to how alcohol…

February 25, 2026
2 min read
Add Us On GoogleAdd SciAm
Baby butterflies keep the beat to fool ants into taking care of them
These caterpillars rely on ants to tend them, and they use a surprisingly complex sense of rhythm to make it happen

Seeing Earth from space is a privilege that most of us will never get in our lifetime.
As we all know, the first lucky people to set foot on the moon were Neil Armstrong and Buzz Aldrin in 1969, and since then, over 290 people have visited NASA’s

Here on Earth, it seems easy and straightforward to know “where” anything is, or to know “when” an event either occurred or will occur. After all, we’ve mapped out the entire surface of the Earth, and can define our…
?xml>?xml>

NSF–DOE Vera C. Rubin Observatory, jointly funded by the U.S. National Science Foundation (NSF) and the U.S. Department of Energy’s Office of Science (DOE/SC), has released its first alerts documenting astronomical events spotted by the…

Some caterpillars speak ant by rocking to a beat.
By jiggling like a cellphone receiving a call while on vibrate, the caterpillars cozy up to ants, reaping benefits for them both. The findings, published February 25 in the Annals of…

President Donald Trump just gave the longest State of the Union address in recorded history, a speech filled with examples of the United States’ leadership status in the world, but it omitted one possible point of pride: NASA’s upcoming Artemis…

Update Feb. 24, 7:10 p.m. EST (0010 UTC):…