A planetary scientist who has participated in analog missions describes their value for planning space exploration – and ...

Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is ...

With water being so important to life on Earth, scientists often look for it on exoplanets. But some of those worlds might ...

A low-density, puffy planet orbiting relatively far from a young star in a nearly perpendicular orbit. What's going on?

High above the Sun’s blazing equator lie its mysterious poles, the birthplace of fast solar winds and the heart of its ...

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

Harvard’s Avi Loeb says interstellar object 3I/ATLAS is releasing a metal alloy only known from human industry, raising ...

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

Brian Cox debunks the 'alien probe' theory for interstellar comet 3I/ATLAS. Learn the scientific truth about its ancient ...

We're just weeks away from this interstellar visitor reaching its brightest in Earth's night skies. Will we see it?

The universe is truly magical: vast, mysterious, and endlessly fascinating. There’s something almost unreal about being able ...

Data from the James Webb Space Telescope and other observatories suggests a supervolcanic exomoon may lurk around the giant ...