Mercury reaches its peak evening visibility this February, offering Northern Hemisphere observers a longer post-sunset viewing window, higher altitude and a crescent moon reference.

Visiting other planets isn’t possible (yet), but our planetary neighbors regularly visit us in the night sky. While Jupiter and Saturn are typically some of the first viewing targets for amateur ...

Right: Mercury Magnetospheric Orbiter Mio of the BepiColombo mission; Left: Earth’s GEOTAIL satellite. The illustration highlights comparative studies of planetary magnetospheres. An international ...

Mercury is known as an "inferior planet" because its orbit is closer to the Sun than Earth's. As a result, from our vantage point, it always appears to be facing the same direction as the sun. It is ...