We've known for over 30 years that there are other stellar systems in our galaxy, but we don't have any idea how many there ...

Even though Venus moves between the Earth and sun every 19.5 months, it becomes visible after sunset and before sunrise only ...

Experts have unveiled details of SIMP 0136, a floating planetary mass thought to be around 20 light-years away from the Earth ...

Let’s get this out of the way—any scientist studying Uranus will tell you that they’re tired of the planet being the butt of ...

If you look up on a clear night, the brightest and largest object in ... big enough to be considered planets in their own right. So exactly how many solar system moons have we found?

The two exoplanets, or planets outside of our solar system, orbit a star called TOI-1453, which is slightly cooler and ...

Ganymede, Jupiter's largest moon and the solar system's largest, is bigger than Mercury and the dwarf planet Pluto, with a diameter of 5,268 kilometers.

Astronomers have captured direct images of exoplanets in a star system 130 light years away, providing clues on gas giant ...