When sunspots erupt at nearly the same time, it could be something known as "sympathetic solar flares." A double eruption ...

Pons-Brooks and Jupiter were seen by NASA's Solar TErrestrial Relations Observatory-A (STEREO-A). Credit: Space.com | NASA ...

In celebration of the Hubble Space Telescope's 35 years in Earth orbit, NASA is releasing an assortment of compelling images ...

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

Scientists have developed a breakthrough coronagraph that could finally allow us to see Earth-like exoplanets hidden in the ...

The Smithsonian Astrophysical Observatory (SAO) is launching a nationwide strategic investment in the future of rural ...

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

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