Scientists have recently unveiled a remarkable discovery in the outer reaches of our solar system: a space fossil located 4 ...

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

Bill McKinnon shares his story of a career spent studying the geology and geophysics of icy worlds beyond our own. McKinnon, ...

Planets do not emit visible light like stars; they shine in the sky because they reflect sunlight. Exoplanets too reflect ...

The simulation of the Solar System that came the closest to the observation was the presence of a small planet, between the ...

A new study sheds light on how planets, including Earth, formed in our galaxy and why the life and death of nearby stars are ...

Is interstellar object 3I/ATLAS an alien probe or a natural comet? Explore the compelling scientific evidence, from its tail ...

COON RAPIDS - Participants in the Iowa Star Party don't want to keep the wonders of the night sky to themselves. They are ...

This long-duration comet will make its closest approach to Earth this fall, before disappearing into the outer solar system ...

ALMA captures surprising activity in comet C/2014 UN271, Bernardinelli-Bernstein comet, the largest ever detected.