Amazon has officially begun building its broadband internet service in orbit with the delivery of the first batch of its Kuiper satellites.

A team of astronomers poring through old astronomical data may have seen a candidate for the elusive Planet Nine – a ...

Simply look to the western sky after sunset. The delicate form of the crescent moon is set to draw close to the planet ...

Coming up this Saturday night, May 3, the fat crescent Moon will hover next to the famous blue star Regulus. As the brightest luminary in the entire zodiac and the main star of Leo the Lion, the ...

In 2020, astronomers detected WD 1856+534 b, a gas giant that orbits a star 81 light-years from Earth. This exoplanet, which ...

In a memorable image from the 1977 film “Star Wars,” the young hero Luke Skywalker gazes at two suns setting above the horizon on his desert planet Tatooine. Astronomers since then indeed have ...

Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why ...

Recent flybys of the fiery world refute a leading theory of its inner structure — and reveal how little is understood about ...

Solar Orbiter began routine science operations in 2021 and has since looped ever closer to the Sun, stealing bits of speed ...

When a planet's orbit brings it between Earth and a distant star, it's more than just a cosmic game of hide and seek. It's an ...

"These early images of Donaldjohanson are again showing the tremendous capabilities of the Lucy spacecraft as an engine of ...

NASA's Lucy will venture as close as 596 miles to this asteroid, an estimated 2 ½ miles in length but much shorter in width.