Astronomers are just beginning to scratch the surface of the complex, and sometimes violent, relationships between planets ...

Exoplanets like HD 189733b, Tres-2b, and TOI-849b display extreme conditions from glass rain to near-total darkness, offering ...

The discovery of strange, ultra-red objects—especially the extreme case known as The Cliff—has pushed astronomers to propose ...

Mercury is a strange, hot mess of a planet. This rock is closest to the Sun, but its surface temperatures can plummet to as low as -180 °C (-290 °F). It has the strangest sunrises and sunsets in the ...

Around the world, fearless contenders step up for bragging rights in contests that test nerve, endurance and sheer absurdity. They roll, crawl and sweat their way through the world’s oddest challenges ...

Phobias aren’t always about spiders, snakes, or heights. Sometimes, they creep into everyday life in ways that feel silly on the surface but strike a nerve that’s very real. These fears can be awkward ...

A new study says observations from the NASA Fermi space telescope suggest a halo of dark matter around the center of our ...

NASA's Perseverance Mars rover recently came across an odd rock, dubbed "Phippsaksla," that is unlike anything else the robot has found on the Red Planet. It turns out that it probably isn't from our ...

Far beyond the eight familiar planets in our solar system, countless bizarre and extreme worlds await discovery — and some have already been found. Thanks to rapidly advancing telescope technology, ...