Perihelion is the point on an orbital course that brings a body closest to the sun. C/2025 K1 (ATLAS) is an Oort cloud comet ...

A ‘selfie’ taken during Webb’s testing on Earth. Ball Aerospace After Christmas dinner in 2021, our family was glued to the ...

We’ve all looked up at the night sky and wondered what those lights really look like up close. Stars, planets, the craters on the moon – they’re all up there, waiting to be explored but telescopes ...

A comet older than our Solar System is within backyard astronomers’ reach. Comet 3I/ATLAS, a rare interstellar visitor discovered in July 2025 by the NASA-funded ATLAS survey in Chile, has emerged ...

Through the global Unistellar network, more than 25,000 citizen astronomers are joining SETI Institute researchers to collect real-time data on 3I/ATLAS. Using the Unistellar app, participants can ...