A quick guide to planets, including the eight in our solar system, how they form, and how many could be in the universe.

In a groundbreaking study published in Science Advances on August 20, NASA researchers unveiled new insights about the ...

Aliens may have been closer to Earth than first thought. New research from NASA reveals that Ceres, the dwarf planet in the ...

Called 3I/ATLAS, the comet is only the third of its kind known to astronomers, and it’s likely been heading our way for billions of years, carrying pristine material from another star system ...

The European Space Agency-led Solar Orbiter mission has split the flood of energetic particles flung out into space from the sun into two groups, tracing each back to a different kind of outburst from ...

From planets that rain diamonds to moons hiding underground oceans, the solar system is full of astonishing secrets. These 10 ...

The birth of a new solar system may have been caught on camera. About 1,400 light-years from Earth sits a young sunlike star surrounded by cooling gas and teensy silicate minerals. These mineral ...

Here's a look at our solar system, from the scorching surface of Venus to the home of the largest volcano.

The solar system appears to live in one of the major spiral arms of the Milky Way, not in an offshoot as previously thought.