Science & Astronomy

By analyzing the disintegrated remains of distant worlds consumed by their stars, a new study found that at least some rocky exoplanets may have interiors similar to those of Earth and Mars.

A nonprofit called The Earth Archive wants to make a 3D map of the entire planet, before the climate crisis changes Earth's face forever.

The first-quarter moon rises over Earth's thin, blue atmosphere in this photo taken by an astronaut at the International Space Station.

Here's the reality: We're messing up the Earth and any far-out ideas of colonizing another orb when we're done with our own are wishful thinking.

Big, schmancy compounds keep popping up all over the solar system, and new research may help clear up confusion about how they form in so many places.

Simulations help distinguish a cosmos containing fuzzy dark matter from one without it.

New photos give us the best-ever look at NASA's InSight lander on the surface of Mars and show the circuitous route the Curiosity rover is taking up a big Red Planet mountain.

NASA's venerable Hubble Space Telescope turned its eyes to interstellar visitor Comet 2I/Borisov and caught a surprise: The interloper looks a lot like comets from our own solar system.

NASA is already pulling together plans for what could become its first long-lived robotic rover on the moon's surface, designed to sniff out water and targeting a landing date of 2022.

But don't worry, no laws of physics are being violated.

The 1995 discovery showed that the sun isn't the only star to host a family of planets — something we had long figured but never demonstrated — and also that the universe is really, really weird.

Some ice deposits on the moon are younger than expected, researchers say, and it appears these deposits came from multiple sources at different times in our solar system's history.

The European-Russian ExoMars 2020 mission will have to find some parachute fixes fast if it wants to be ready for launch next summer.

There doesn't appear to be a boulder blocking the instrument.

Right now, it's a solar system known only by the designation HD 17156. Before 2019 ends, it will bear an entirely different second moniker — perhaps one suggested by you.

Was Venus once covered in a liquid water ocean? A new study suggests it was not, which could diminish hope that eons ago, warm and wet conditions allowed life to arise on the planet.

Observations of the interstellar Comet Borisov have been flooding in for six weeks, and the more astronomers duplicate one another's work, the more confident they are in their analysis of the object.