From somewhere else in the Milky Way galaxy, Comet 2I/Borisov was just visiting the Solar System. Discovered by amateur astronomer Gennady Borisov on August 30, 2019, the first known interstellar […]

The Crab Nebula is cataloged as M1, the first object on Charles Messier’s famous list of things which are not comets. In fact, the Crab is now known to be […]

A mere 46 million light-years distant, spiral galaxy NGC 2841 can be found in the northern constellation of Ursa Major. This deep view of the gorgeous island universe was captured […]

What’s happened to our Sun? Last month, it produced the largest prominence ever imaged together with a complete solar disk. The record image, featured, was captured in ultraviolet light by […]

What are these two bands in the sky? The more commonly seen band is the one on the right and is the central band of our Milky Way galaxy. Our […]

“Oh my God! Look at that picture over there! Here’s the Earth coming up. Wow is that pretty!” Soon after that pronouncement, 50 years ago today, one of the most […]

Large spiral galaxy NGC 4945 is seen nearly edge-on in this cosmic galaxy close-up. It’s almost the size of our Milky Way Galaxy. NGC 4945’s own dusty disk, young blue […]

Beta Cygni is a single bright star to the naked eye. About 420 light-years away it marks the foot of the Northern Cross, famous asterism in the constellation Cygnus. But […]

What will the huge Green Bank Telescope discover tonight? Pictured, the Robert C. Byrd Green Bank Telescope (GBT) on the lower right is the largest fully-pointable single-dish radio telescope in […]

What did the first quasars look like? The nearest quasars are now known to involve supermassive black holes in the centers of active galaxies. Gas and dust that falls toward […]