Over six decades of “Doctor Who,” the intergalactic adventurer’s adversaries have included evil robots, rampaging Yeti — and the BBC, which erased many early episodes of the now-iconic sci-fi TV ...

Astronomers have discovered a strange new type of exoplanet known as a Hycean world—an ocean-covered planet with a thick ...

We're starting to see just how exceptional our own solar system and its history is, as more exoplanets are discovered. A fourth exoplanet discovery in the LHS 1903 system made by ESA's CHEOPS mission ...

Two unearthed episodes, which were discovered in film canisters wrapped in plastic bags among the possessions of a dead ...

Astronomers have detected an Earth-size planet candidate orbiting a nearby star once a year, making it a promising target for ...

New research suggests Mars may have remained habitable much longer than scientists once thought. Ancient sand dunes in Gale Crater appear to have been soaked by underground water billions of years ago ...

Earth-size planet (HD 137010 b) found orbiting a nearby star once a year, making it a promising target for finding life.

Who would have thought it? Two missing “Doctor Who” episodes feared to be lost forever will be broadcast for the first time ...

Mars didn’t always look like the barren world we see today. Over billions of years, the Sun’s solar wind stripped away much of its atmosphere, helping transform it from a warmer, wetter planet into a ...