Our Solar System has eight planets, a few dwarf planets and more than 200 moons. But wait. Are you seeing double? Or did ...

Astronomers have uncovered evidence of a bizarre, potentially historic discovery: the first moon ever detected beyond our ...

You can be moving at extraordinary speed and still feel completely stationary. The reason comes down to the difference between velocity and the changes in motion your body can actually detect.

Dhaka, Oct. 25 -- Astronomers may have found the first convincing evidence of a moon-like object beyond our Solar System, identifying a massive companion orbiting a brown dwarf in a distant star ...

Solar Cycle 25 is the current solar activity cycle that began in December 2019, marking a solar minimum. In the solar ...

The Icy Assassin That Rewrote the Order of the Solar SystemPrevious Episode RecapIn the previous story, we approached the existence of "Styx," the moon flying through the smallest and harshest region ...

The planet Mercury is the smallest member of our solar system’s eight planets. However, its small size (4,880 kilometres in ...

Japan is heading to Mars' mysterious moons. Here's how its ambitious mission could bring pieces of one back to Earth ...

Uranus and Neptune are often described as planetary twins because they are similar in size and appearance. But new research ...

The Japan Aerospace Exploration Agency's spacecraft is expected to reach the Martian system in August 2027 and return samples ...

Researchers said the red planet is still tectonically active today. A team found the epicenter of a marsquake at the Grand ...

Phobos, it seems, is not long for this universe - at least on the large cosmic timescale. Astronomers have long known that ...