In our galaxy, a supernova explodes about once or twice each century. But historical astronomical records show that the last Milky Way core-collapse supernova seen by humans was about 1,000 years ago.

Due to the lapse in federal government funding, NASA is not updating this website. Because most quasars are billions of light-years away, it is a surprise to find one virtually in our own cosmic back ...

Space Week is Oct. 4-10, so here are some of NASA’s latest discoveries and why Edwin Hubble’s history-making photo, taken on this day in 1923, revolutionized astronomy. This image above is from the ...

"Although there have been multiple efforts to understand the nature of dark energy, its composition, and its manifestation in the universe," one expert says, "we know embarrassingly little about it." ...

“Classical Cepheids” are a type of pulsating star that rhythmically brightens and dims over time. These pulsations help astronomers measure vast distances across space, which makes Cepheids crucial ...

ABOVE: This composite photo by NASA, ESA, the Hubble Heritage Team and R. Gendler shows the Andromeda Galaxy. The Cepheid variable star V1 is indicated with an arrow, and four inset images show the ...

That object is a star nicknamed "Dracula's Chivito," and according to astronomers behind the discovery the star appears to have "fangs", and was named after a sandwich that's Uruguay's national dish.

Amid the Soul Nebula's harsh red light, a cocoon of gas holds baby stars in the making in this ethereal new Hubble telescope image. When you purchase through links on our site, we may earn an ...

NASA has highlighted an image from Hubble's Classics collection of stunning shots of the cosmos with a new post on the official Hubble X account. The image is of The Boomerang Nebula and was ...

Astronomers have captured a rare example of an Einstein cross, where a galaxy is not just lensing but also quadrisecting the light coming from another galaxy billions of light years away from Earth, ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? When it comes to outer space, scientists know about one thimbleful against an ...