Discovered on July 1 by the NASA-funded ATLAS telescope in Chile, 3I/ATLAS is only the third confirmed visitor from another ...

In reality, a green rim is there at every sunset. It's just usually so thin, and so brief (a second or two), that our eyes ...

Fleets of satellites interfere with snapshots taken by Earth-bound observatories. But a new study suggests these orbiters ...

Images captured by NASA's Parker Solar Probe as the spacecraft made its record-breaking closest approach to the sun in ...

Like many kids, Shaan Patel spent nights staring at the sky in awe, wondering what existed beyond the stars. That curiosity ...

NASA's Hubble Space Telescope caught a glimpse of 3I/ATLAS – again. Here's a look at the latest photo of the intriguing ...

Astronomers have captured images of two stellar explosions—known as novae—within days of their eruption and in unprecedented ...

A NASA study predicts that 96% of the images from the ARRAKIHS mission will be contaminated by the light from the more than ...

For the first time, astronomers have captured the brilliance of a superluminous supernova via gravitational lensing.

We are in Germany and it's winter, so we can confidently assume that it is cold, with possible snow covering the fields and ...

New details emerge about the interstellar comet 3I/ATLAS. Its tail appears unusually thin and straight, unlike typical comets. Fresh anomalies note a lack of curvature and an abrupt fading of the tail ...

Three thought experiments involving “demons” have haunted physics for centuries. What should we make of them today?