The boundary of a solar system is not defined by planets, but by gravity. Beyond Pluto and the Kuiper Belt lies the Oort ...

What lies beyond Pluto and the Kuiper Belt? Today we explore the Oort Cloud a vast, invisible shell of trillions of icy ...

Fact-based stories from our cosmic neighbourhood, one star or constellation at a time. Name it, navigate it, know it.

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what you’ll need to catch a glimpse.

Darryl Z. Seligman is an Assistant Professor of Physics and Astronomy at Michigan State University. Comet 3I/ATLAS is the third large interstellar visitor that we have ever discovered —- an asteroid ...

Interstellar object 3I/ATLAS has triggered a global scientific alert after emitting mysterious radio signals, prompting NASA ...

Astronomers at Princeton University have uncovered evidence that the outer solar system is more structured than long believed ...

CAPE CANAVERAL SPACE FORCE STATION — The United Launch Alliance launched its Atlas V rocket as it carried Amazon’s Project Kuiper satellites from Space Launch Complex-31 on Monday night. The Atlas V ...

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact configuration and later underwent a violent reshuffling that scattered them to ...

CAPE CANAVERAL SPACE FORCE STATION — The United Launch Alliance was preparing its Atlas V rocket to take up Amazon’s Project Kuiper satellites on Wednesday night, but stood down due to weather ...

SAN FRANCISCO, CALIFORNIA – OCTOBER 8: Giants longtime broadcasters Mike Krukow and Duane Kuiper arrive to throw out the first pitch before Game 1 of the National League Division Series at Oracle Park ...