Our gleaming blue marble of a planet is a treasure that shimmers and sparkles in the darkness of space. Most of humanity will ...

Jamie Carter is an award-winning reporter who covers the night sky. A planet’s opposition occurs when Earth passes between it and the Sun. As a consequence of that geometry, Neptune’s disk ...

There are no showtimes for this date. Blue Planet is a space film about Earth. From the orbit of the U.S. space shuttle, where the curvature of the globe and the shape of its continents stand out ...

A new exhibition at the Smithsonian's National Museum of Natural History combines satellite observations and historical data ...

A year after the epic Planet Earth II, Sir David Attenborough is returning to our screens with a follow-up to 2001's Blue Planet. No spoilers, but we've seen the first episode and as sequels go we ...

The ion tail of C/2023 A3 (Tsuchinshan-ATLAS) could appear as a blue streak across the northern hemisphere sky during October ...

Astronomers have been curious about the makeup of Ceres, the largest object in the asteroid belt, ever since its discovery by ...

The world—which orbits Barnard's Star, just six light-years from us—has a year that lasts barely three Earth days.

Before Earth became the blue planet, it was engulfed by a very different kind of ocean: a vast, deep magma ocean reaching ...

A distant planet should have been consumed when its star expanded to become a red giant, perhaps offering insights into ...

Computer simulations suggest that there is an undiscovered Earth-like planet lurking in the distant ... [+] Kuiper Belt, well past the orbit of Neptune (artistic illustration). There may be an ...

This 2015 photo from the International Space Station showcases the deep tidal channels that cut through a line of cays in the ...