All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

The joint European-Japanese mission is only the second survey of Mercury, the least explored planet in the inner solar system ...

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

Mercury, the innermost planet in our solar system, is full of surprises! Join us for an in-depth look at its physical ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.

ESA and JAXA's BepiColombo mission recently completed its last flyby of Mercury, revealing stunning details about the ...

In a thrilling close approach, the BepiColombo mission captured its final, stunning images of Mercury before its orbit ...

It seems like it should be pretty easy to get to Mercury. The little rocky planet ... difficult to reach the innermost planet of our solar system—which makes it that much more impressive that ...

Michigan State University and NASA researchers discover seven dark comets that reveal new solar system secrets.

A spacecraft named BepiColombo is currently zipping by planet Mercury, making a very close flyby and snapping incredible high ...

A planet-sized visitor possibly visited the solar system billions of years ago and permanently changed the cosmic neighbourhood by warping the orbital path of four outer planets of the system, a ...

Discover Snapchat Planets Order, a creative feature in Snapchat Plus to rank your closest friends like planets in a solar ...