Mercury takes only 88 Earth days to orbit the sun.

Mercury, the closest planet to the sun, has the most eccentric orbit, with the difference between the distance at perihelion and aphelion being 0.17 AU. That is quite a lot for Mercury ...

It is not often that all the planets in the Solar System other than ours are lined up across the night sky for us to see.

These events, often called “planet parades” or “planetary alignments,” though not exceedingly rare, are worth observing since they don’t happen yearly.

As it circled it, it snapped these incredible images of one of the Solar System's most mysterious planets. BepiColombo is Europe's first mission to Mercury ... close to the Sun, is there a ...

It is not often that all the planets in the Solar System other than ours are lined up across the night sky for us to see. The ...

From January to March, the night sky will host a spectacular parade of planets featuring Venus, Mars, Jupiter, Saturn, Uranus, and Neptune. The alignm ...