Astronomers have announced the discovery of a new dwarf planet in our solar system, named 2017 OF201. Located far beyond ...

The mystery of how planets and icy objects formed in the farthest reaches of our solar system just took an exciting turn. A ...

The lone planet confirmed to be in the system is squeezed in between the two, orbiting at a distance similar to Earth's distance from the Sun. And, as an added bonus, the planet is orbiting backward ...

When we think about asteroids that could threaten Earth, we often imagine massive, city-sized rocks hurtling through space.

PUNCH’s vibrant first images reveal the solar wind in a whole new light — literally. This ambitious NASA mission is set to ...