ESA's Solar Orbiter captured views of the planet Mercury passing in front of the Sun. Multiple instruments aboard the spacecraft captured the imagery. Credit: Space.com | footage & orbit animation cou

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Mercury, the first planet from the sun, is about to be really easy to spot for a short snippet of time in the night sky next month. But it will not be easy to see for long.

After Friday's spectacle, a "planet parade" of this size won't appear in the night sky for several years, experts say.

March brings thrilling celestial events, including a rare chance to spot Mercury, a stunning total lunar eclipse, and insights into the so-called “dark side” of the Moon. Venus bows out early in the month,

March’s night sky brings a total lunar eclipse, a rare chance to see Mercury, and shifting planets. Don’t miss these celestial events.

The two innermost planets, Venus and Mercury, will shine together low in the western sky at sunset on March 10. Here's how to get the best view before they disappear.

After dusk on Friday night, seven planets are expected to align in the night sky. But you'll need binoculars or a telescope to see them all.

On January 31, 1961, a chimpanzee named Ham became the first great ape to travel to space. His mission was crucial in proving that living beings could survive and function in microgravity. While his flight lasted only a few minutes,

Seven planets are on display in the night sky at the end of February, but some will be harder to spot than others. Here’s what you need to know to catch a glimpse.

Mercury, Venus, Mars, Jupiter, Saturn, Neptune and Uranus could be visible, but not all can be seen by the naked eye.

But because Venus and Mercury orbit closer to the sun than Earth, with smaller, faster orbits, it's more rare for them to make an appearance, according to NASA. Venus is visible for only a few ...