What’s the deal with semiconductors? You might be wondering why semiconductors became so hot, and what shifting from “From ...

Researchers say they found a curious dot on infrared images taken 23 years apart that seems to be moving in a manner consistent with a large, distant planet.

Discovered in 1930, Pluto was long considered our Solar System's ninth planet, but was unseated in 2006 after the discovery ...

Astronomers have long speculated about an unseen planet lurking in the solar system's outer edge. This hypothetical world, ...

For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...

KPFA first took to the airwaves on April 15, 1949. To mark the station’s 76th birthday, we present excerpts of interviews we’ve conducted with Jane Fonda; Louise Erdrich; Agustín Fuentes (about human ...

Astronomers claim to have discovered a new ninth planet in our solar system, according to research led by Terry Long Phan ...

Astronomers may have found a candidate for Planet Nine. This planet is beyond Neptune. The finding could be the first ...

There have been questions about a mysterious ninth planet in our solar system for nearly a decade. Pluto was unseated as ...

Researchers have found a candidate for the hypothetical Planet Nine, which could be an undiscovered giant planet way out in ...

The ongoing search for an additional planet at the solar system's edge has identified a new candidate, potentially ...