Six planets grace the sky this month in what’s called a planetary parade.

A spacecraft has beamed back some of the best close-up photos yet of Mercury's north pole.

The brother of a boxer who had just won a bout punched the opponent's trainer in the ring in a chaotic post-fight melee in Sydney.

There's another chance to see five planets lined up in the sky.

There's a special chance this week to see five planets lined up in the night sky.

Tom Ford closed New York Fashion Week on Wednesday with a starry front row and a runway full of big hair, disco cowgirls and sequins for miles.

A joint European-Japanese spacecraft got its first glimpse of Mercury as it swung by the solar system’s innermost planet while on a mission to deliver two probes into orbit in 2025.

A joint European-Japanese spacecraft is set to fly by Mercury for the first time on its path to deliver two probes into the planet's orbit in 2025.

A bipartisan group of lawmakers is renewing a push to expand a U.S. compensation program for people who were exposed to radiation following uranium mining and nuclear testing carried out during the Cold War.

A three-day celebration of what would have been history-making astronaut John Glenn’s 100th birthday has begun in his birthplace and childhood hometown in Ohio, even as further plans are announced.

BERLIN – A spacecraft bound for Mercury swung by Venus on Thursday, using Earth's neighbor to adjust its course on the way to the solar system’s smallest and innermost planet. The fly-by is the second of nine so-called planetary gravity assists that the spacecraft needs for its seven-year trip to Mercury. Mercury’s extreme temperatures, the intense gravity pull of the sun and blistering solar radiation make for hellish conditions. BepiColombo will make one more fly-by of Venus and six of Mercury itself to slow down before its arrival in 2025. The last spacecraft to visit Mercury was NASA’s Messenger probe, which ended its mission in 2015 after a four-year orbit.

Even more rare is when the planet Mercury passes right across the middle of the sun, and it's happening Monday. A Mercury transit, as it's called, occurs only 13 times in 100 years, according to NASA, and it won't be seen from North America again for another 30 years, or from anywhere until 2032. ET, it will take more than five hours for Mercury to pass from one side of the sun to the other. Mercury, the smallest planet in our solar system, will be just a tiny dot on the sun, so NASA recommends using a telescope with a certified solar filter. According to NASA, the Solar Dynamics Observatory's website' will be showing "near real-time" images of the transit, so you don't have to miss this rare event, no matter where you are.

For those who will be witnessing totality during the Great American Eclipse on Monday, you’re in for a real treat: not only will you see the sun completely blocked by the new moon -- so long as it’s not cloudy -- but it will get eerily dark. Birds may become confused or stop flying. And if you know where to look, you may even be able to spot a hidden planet.