When a massive star dies, it goes out with a bang, creating a stunningly bright explosion that can temporarily change the look of the night sky. The brightest and closest may be visible with the naked ...

A new supernova has literally, and figuratively, "burst" upon the scene. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. During the last few days ...

While the name Pinwheel Galaxy can refer to M33 in Triangulum and other open spirals, it is the most common moniker for M101 (NGC 5457) in Ursa Major. Located near Alkaid (Eta [η] Ursae Majoris) at ...

Astronomers and amateurs alike are excited about a new star explosion visible in small telescopes. The new supernova popped into visibility on May 19 in the Pinwheel Galaxy, (also designated as ...

M101 is a spiral galaxy of type Sc (non-compact spiral) in the constellation of the major ura. It is estimated to be virtually double the size of our Milky Way. The distance that separates the ...

We have an impressive 100 billion stars in the Milky Way, but M101 is bursting with something like a trillion stars, ten times the number in the Milky Way! That's staggering. I had no clue M101 was so ...

Next stop: the emergency room. The M101 bus was the most dangerous in the city last year, crashing 268 times on its 12-mile route between Washington Heights and the East Village, according to data The ...