Pluto may not be a planet any more, but you still have a chance to see the distant dwarf planet at one of Michigan's ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

On the 95th anniversary of its discovery, Pluto remains one of the most beloved and enigmatic worlds in our solar system, ...

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.

When was Pluto discovered? Pluto was discovered in 1930 by Clyde Tombaugh, an American astronomer at the Lowell Observatory ...

And one of those moons, known as Charon, is half the size of Pluto itself. But that’s not the only thing that’s unusual about ...

Last week, we discussed the Dog Star, Sirius, the sky’s brightest star. Orbiting Sirius is a faint companion, a tiny star known informally as the Pup.

An amateur astronomer discovered Pluto 95 years ago today. The former planet will complete an orbit in another 153 years.

White dwarf stars could host habitable planets. Fast planetary rotation reduces cloud cover, keeping surface temperatures stable.

Scientists have long overlooked white dwarfs as hosts for habitable exoplanets, assuming their lack of fusion would make life impossible. But new climate models challenge that idea, showing that ...

Astronomers have peered into an alien planet's atmosphere and found extreme weather unlike anything in the solar system.