the remnant of a supernova explosion, observed in 1054 a.d., in the constellation Taurus.
A mysterious green blob in outer space is named “Hanny’s Voorwerp.” What does that mean, and why is the blob there?Did you catch the story about a giant green blob discovered in a remote section of the universe? An intergalactic blob in and of itself isn’t an appropriate topic for a dictionary website, even if the blob has been shown to move and change color. The reason you are reading about this on Dictionary.com is the mouthful of a name: Hanny’s Voorwerp. The second word is pronounced “FOR-verp.” While the …
What word do scientists use to describe the most ginormous star ever discovered?If you find something that’s bigger than you thought was physically possible, how would you describe it? You start with what you already have, which is R136a1, the equivalent of a cosmic ZIP code. The R stands for Radcliffe Observatory, which located the star in the first place (long before anyone knew its immensity.) Massive isn’t the same thing as “big” in astronomy. Mass is roughly equivalent …
Origin of Crab Nebula
First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the expanding remnant of the supernova observed in 1054 ad, lying in the constellation Taurus at an approximate distance of 6500 light years
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012