Mount Everest may be the tallest mountain on Earth, but it's nothing compared to the towering giants scattered across our ...

Mercury reaches its point of greatest eastern elongation on Friday (July 4), presenting an excellent opportunity to spot the ...

Summer is here, and Mercury goes retrograde from July 17 until August 11 — the retrograde begins after the full moon lunar ...

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

Mercury moves super fast around the Sun, finishing its year in just 88 Earth days. The planet has crazy temperature swings, ...

But we have 1,000 or so meteorites that come from the moon and Mars. ... However, differences in plagioclase content and age compared to Mercury's surface complicate definitive identification.

What's happening in the skies over North Texas this month? July holds some spectacular sights in the night and morning sky.

On Friday (June 27), the crescent moon will be higher in the sky, just above Mercury. Precisely how low Mercury is, and how long it's observable during this period, depends on your location, so ...

Alongside a crescent moon, Mercury, Venus and Saturn will become visible to stargazers just before dawn on Friday morning. According to NASA, the planetary phenomenon will be clearest about 45 ...