P.M. EDT. On this date, the Sun appears directly above the equator and the Northern and Southern hemispheres receive the same amount of sunlight. The autumnal equinox also officially brings the ...

Just 40 light-years from Earth, a red dwarf star named TRAPPIST-1 intrigues astronomers with its exceptional planetary system ...

With help from amateur astronomers, scientists tracked how an asteroid traveled from space, broke up in Earth's atmosphere ...

The south shore of St. Croix became a stage for stories about Anansi, the trickster spider of African and Caribbean and folklore, the djembe and other tales during “Astronomy by the Sea” Saturday ...

The GW190412 merger revealed a black-hole recoil moving faster than 50 km/s. Gravitational waves allowed its 3D motion to be reconstructed. A research group led by the Instituto Galego de Física de ...

Telescopes on the National Mall tonight will give people a chance to see the stars and experience the largest astronomy outreach event in the United States.

Astronomers have witnessed a rare “extremely stripped supernova” that exposed the inner silicon layers of a dying star, confirming theories of stellar fusion and offering new insight into how ...

A new class of supermassive black holes embedded in a thick gas shell could explain small red dots in images from the James ...

New simulations suggest Earthlike planets may be much more typical than previously thought whereas water worlds may not.

Earlier, experts from the Laboratory of Solar Astronomy of the Russian Academy of Sciences said that flare activity is slowly beginning to grow on the Sun ...

Astronomers have discovered a tiny, ghostly galaxy in a remote corner of the universe, likely a cosmic castaway flung from ...

Oconee County resident Susan Vizurraga has written an historical fiction novel on a little-known female astronomer.