A new study shows just how little we know about why Venus became the hothouse world it is today.

By now, you're probably used to hearing about potentially habitable worlds orbiting other stars. But that "potentially habitable" part may come with more caveats than you might think.

The space exploration industry is booming, which is an encouraging sign for our future. But some pundits are arguing that rocket launches will exacerbate global warming.

The late physicist Stephen Hawking predicted that black holes evaporate as its massive tidal forces interfere with quantum particles. Now, experiments are starting to confirm his predictions.

After decades of neglect, space agencies are starting to listen to planetary scientists interested in studying Venus. Here's why they want to explore an alien hellscape.

Galaxies seemingly lacking dark matter which threatened to rule out alternative ideas about what dark matter could be may actually be full of it, according to a second, in depth look.

According to a new study, Earth's collision with a Mars-sized protoplanet 4.5 billion years ago didn't just create the Moon. It also gave us our oceans and helped life get started.

The Event Horizon Telescope's image of M87* is so good that theorists thought it was too good to be true.

Are two galaxies which seem to lack dark matter proof that dark matter must be a particle rather than a quirk of gravity at cosmic scales. Well, it's actually kind of complicated...

Considering what we know about planetary formation, Jupiter shouldn't have been able to grow as massive in its current orbit. But a new simulation shows it could've been born much, much further away.

If you want to explore our solar system, you need to prepare for multi-year journeys. But a new discovery in nanoscale engineering could help cut the travel time between worlds.

NASA appears to be sick and tired of having to wait until the mid-2020s to return to the Moon on a future rocket that will be inferior to the private ones already flying, and easily lapped by ones currently being built.

It may be tempting to use our nuclear warheads to save the planet from rogue space rocks instead of pointing them at each other, it would be a waste of perfectly good nukes.

Now that Opportunity's mission is complete, many wistfully lament about "bringing our robot home." There's just one problem: it's already home.

Buckle up steampunk enthusiasts, it turns out that not only are steam-powered space probes possible, they might be perfect for hopping between comets and asteroids on research and mining missions.