Mercury is one of the least visited planets in our solar system, but NASA’s MESSENGER mission changed that in 2011. It remains the only spacecraft to orbit the planet, capturing thousands of ...

Venus will partner up with the giant planets Saturn and Neptune to form a line up in the pre-dawn sky on May 8, with ...

It's been more than six decades since Alan Shepard launched on his famous suborbital flight. What would think of the U.S. space program today?

On the morning of May 5, 1961, astronaut Alan Shepard crawled into the cramped Mercury capsule, "Freedom 7," at Launch ...

Though astronomers have known about the threat posed by near-Earth objects since the 1970s, efforts to catalogue potentially ...

These meteors are fast-moving and often leave bright streaks across the night sky, visible to the naked eye for anywhere from several seconds to minutes.

Back in 1986, when the comet last swung through the inner solar system, it lost about 1/1,000th of its mass. Rice said that ...

Hello, and welcome to another Trash Report! I am Elinor Jones. Wow, I just saw that this Nikon photography account on ...

From late Monday into the early hours of Tuesday, debris from Halley's comet will create shooting stars. Here's the best time ...

On May 4, 2011, the first organized "Star Wars" Day celebration happened in Toronto. The date for this occasion was selected ...

McClain, an Army colonel and helicopter pilot, should have taken part in the first all-female spacewalk in 2019, but there ...