Mercury reaches its greatest elongation, 26 degrees east of the sun on July 4. From latitude 40 degrees north, the ...

They’re not a perfect match, but it’s way too hot on the first planet for us to hop over and confirm for ourselves.

A meteor shower, a planet sighting, and a full moon. Here's how to see all of space's eye-catching activity in July.

Mercury is the month's highlight, reaching greatest elongation July 4. Also on show in the Southern Hemisphere: Mars, Saturn, ...

Mercury stands less than 3° from the Beehive Cluster in the evening sky, preparing to cross through the cluster’s outskirts ...

Most meteorites that have reached Earth come from the asteroid belt between Mars and Jupiter. But we have 1,000 or so ...

As the closest planet to the Sun, Mercury is exposed to the star's enormous gravitational field. And it's really stressful.