Catch a rare conjunction of Mercury with the Moon next week, and an occultation for a very privileged few.
Amazing reader images of today's transit of Mercury across the face of the Sun from around the world.
A review of last night's spectacular aurora along with a look at tonight's space weather forecast plus a recap of…
Mercury is a hot and hostile planet, but it has many things going for it that make it an attractive…
One of the best dusk apparitions of the planet Mercury occurs this weekend... this event also sets us up for…
Ever since the MESSENGER spacecraft entered orbit around Mercury in 2011, and indeed even since Mariner 10's flyby in 1974, peculiar…
The planet Mercury has no moons, but why is that the case? The reason is due to a combination of…
Leonid meteor storms. Taurid meteor swarms. Earth is no stranger to meteor showers, that’s for sure. Now, it turns out…