Almost everything you could want to know about the closest planet to the Sun, Mercury. Real HD photos and videos taken by the ...

This artist’s concept depicts one of the solar system’s inner planets slamming into Earth after being nudged on a collision course by a passing star. Such a world-shattering cataclysm is ...

Never is this more apparent than during a planetary alignment. An alignment including all of the planets except Mercury is taking place in mid-January. Uranus and Neptune, being the most distant ...

For a few evenings around 28 February, every planet in the solar system will be visible in the night sky, thanks to a rare great planetary alignment. Here's how to make sure you don't miss this ...

Six planets were visible in January — four to the naked eye — and now a dim Mercury joins the gang. FILE – People look up to the sky from an observatory near the village of Avren, Bulgaria ...

This phenomenon known as a "planet parade," will feature Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune all present at the same time along a line in the night sky on Friday, NASA says.

Astute skywatchers may have already seen the striking line of planets across the night sky in January. This week Mercury joins the queue. Now every other world in our solar system will be visible ...

Six planets were visible in January — four to the naked eye — and now a dim Mercury joins the gang. This month, Venus, Mars and Jupiter are visible to the naked eye.