Not only has NASA's New Horizons mission confirmed that Pluto has an extended atmosphere, after its historic flyby on July 14, the spacecraft observed a "cavity" in the solar wind, revealing a long ...

Artist’s concept of the interaction of the solar wind (the supersonic outflow of electrically charged particles from the Sun) with Pluto’s predominantly nitrogen atmosphere. Some of the molecules that ...

Poor little Pluto was much maligned in (some) scientific circles—that is, before the arrival last year of NASA’s New Horizons probe. First, its reputation as a planet was questioned; then it was ...

Scientists and star-gazers are still fascinated by the discoveries made by the New Horizons probe that recently flew past Pluto after a nine year journey to the dwarf planet. New Horizons has beamed ...

New Horizons has provided scientists with surprise after surprise, and among the latest is that Pluto has a tail. Researchers were tipped off to its existence by the instrument called SWAP, which ...

No, we’re not talking about Pluto the dog, whose name was changed by the Disney folks from Rover to Pluto shortly after Clyde Tombaugh discovered the planet in 1930. The planet Pluto’s tail consists ...

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The First Church of Christ, Scientist, and we’ve always been transparent about that. The church publishes the ...

Pluto’s has a highly elliptical orbit that takes it inside the orbit of Neptune and then out into the distant icy reaches of the Solar System. Astronomers have long believed that this would have ...

NASA and the team behind its New Horizons spacecraft announced today that Pluto — the dwarf planet — has a giant tail. It's not a physical tail like a dog's, of course, but rather a frigid cloud of ...

The New Horizons spacecraft is continuing to make monumental discoveries during mankind's first-ever encounter with Pluto. Astronomers are now reporting the detection of a possible tail, following in ...