A stellar occultation this month gave scientists an opportunity to scrutinize the seventh planet from the Sun.

"It's amazing that after 35 years, Hubble still holds a unique capability as a top workhorse for science discoveries and ...

Let's turn the sun into a telescope. In fact, we don't have to do any work—we just have to be in the right spot.

Scientists have found possible signs of life on a distant planet in the form of gases that they say are normally linked to ...

Space exploration missions have revealed that polar vortices aren’t uncommon beyond Earth. They’ve been observed throughout ...

The massive dome measures 305 feet (93 meters) in diameter, or about the size of a football field and stands 263 feet (80 ...

The Smithsonian Astrophysical Observatory (SAO) is launching a nationwide strategic investment in the future of rural education called Smithsonian Scientists Taking Astronomy to Rural Schools (STARS).

The political news these days is enough to make some Chicagoans wish they were a million miles away. But consider this: Even ...

On the outskirts of the Milky Way, one of the rarest kinds of stars in the galaxy has just become even more mysterious than ...

NSF–DOE Vera C. Rubin Observatory is gearing up to illuminate the universe’s darkest secrets with groundbreaking new ...

A new survey of distant galaxies undertaken by the James Webb Space Telescope (JWST) is revealing new secrets of the "cosmic noon"—when galaxies in the young universe underwent something of an awkward ...

Stranded astronauts and celebrity space tourism have piqued interest in space — and a photography exhibition in the museum is ...