
Could aliens in another galaxy see dinosaurs on Earth?
How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think bigger

Could aliens in another galaxy see dinosaurs on Earth?
How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think bigger

We all know ice is slippery. The physics behind it is more complex than you’d think
The reason we slip and slide on ice—a phenomenon central to figure skating, curling and other Winter Olympic events—is a centuries-old physics mystery that may have finally been cracked


NASA says a litany of failures led to 2024 Boeing Starliner astronaut stranding
On Thursday NASA leadership outlined how 2024’s glitch-plagued Boeing Starliner mission jeopardized astronaut welfare and the space agency’s culture of safety and accountability

Our solar system is surrounded by weird peanut-shaped objects. Astronomers think they know why
A study published today helps explain how “planetesimals”—the building blocks of planets—came to be

NASA sets a date for redo of key Artemis II test
NASA will attempt a second “wet dress rehearsal” and simulated launch of its upcoming moon mission on Thursday

First solar eclipse of 2026 blazes a ‘ring of fire’ above Antarctica
A stunning “ring of fire” eclipse was totally visible to a lucky few in the Southern Hemisphere. Here’s how to see the next one

Exotic black hole stars could explain the mystery of Little Red Dots
Astronomers are racing to understand mysterious ancient objects that pepper James Webb Space Telescope images

This mind-bending relativity illusion has never been seen—until now
Physicists have observed the bizarre Terrell-Penrose effect in real life

Astronomers spot one of the largest spinning structures in the universe
This enormous chain of hundreds of galaxies—a cosmic filament—is twisting through space 400 million light-years away

Spaceflight literally moves your brain
Space's microgravity appears to shift the location of the brains of astronauts—without a clear effect on their health

How much energy is released when supermassive black holes collide?
The collision of supermassive black holes shakes the entire cosmos, hard

NASA launches Crew-12 astronauts in Valentine’s Day gift to the ISS
Four astronauts are on their way to this orbital space station. Docking is expected on Saturday