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

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 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 ...

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

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 ...

The mysterious interstellar comet 31/ATLAS has sparked worldwide speculation, and theoretical physicist Avi Loeb is once again at the center of the storm — boldly suggesting the object may actually be ...

Far beyond Neptune, at the outer rim of our Solar System, astronomers have spotted what resembles a hidden “structure” or “band” of small worlds. The Kuiper Belt is a vast ring of icy bodies beyond ...

Astronomers have spotted an intriguing cluster of objects in the Kuiper belt, the enormous, donut-shaped region of icy objects beyond the orbit of Neptune. This latest “inner kernel” was identified by ...