Once upon a time, the core of a massive star collapsed, creating a shockwave that blasted outward, ripping the star apart as it went. When the shockwave reached the star’s surface, it punched through, ...

One of the many advantages of being in space is having a front-row seat to the most anticipated cosmic events.

The larger moons of Pluto and Earth likely formed through a collisional process with Charon and our moon, respectively, ...

The name “blue lurker” might sound like a villainous character from a superhero movie. But it is a rare class of star that ...

Billions of years ago, in the icy outskirts of the solar system, a dramatic collision forged the unusual pairing of Pluto and ...

Outer space is infinite, but that hasn’t stopped humans from trying to impose their laws on it. There are more ways for ...

For decades, astronomers have tried to determine how Pluto acquired its unusually large moon Charon, which is about half the ...

Since New Horizons' close encounter with Pluto 10 years ago, experts have come to think of the dwarf planet as much more ...

The potential discovery of a large planet beyond Neptune’s orbit could change everything we know about the Solar System.

Researchers accounted for the previously overlooked structures of the dwarf planet and moon in computer simulations of a ...