noun (used with a singular verb)
Examples from the Web for astrophysics
Obviously, Interstellar is a movie, not a three-hour advanced course in astrophysics.Meet Kip Thorne, the Man Who Crafted the Artful Science of ‘Interstellar’|Asawin Suebsaeng|November 14, 2014|DAILY BEAST
"Well, the astrophysics computer I worked with at the University occupies a total of about one million cubic feet," Conn began.Graveyard of Dreams|Henry Beam Piper
There are others that are difficult to explain, unless you have a good background in astrophysics, Rick.The Egyptian Cat Mystery|Harold Leland Goodwin
The subject of Astrophysics does not admit of so definite a subdivision as that of Astrometry.
Astrophysics is a science still at the outset of a magnificent career.A Popular History of Astronomy During the Nineteenth Century|Agnes M. (Agnes Mary) Clerke
"I'm positive, Commander," replied the beautiful young doctor of astrophysics.The Space Pioneers|Carey Rockwell
British Dictionary definitions for astrophysics
Science definitions for astrophysics
Culture definitions for astrophysics
The branch of astronomy devoted to the study of the physical characteristics and composition of objects in the sky. Typical concerns of astrophysics are how much light the stars give off and the size, mass, and temperature of planets and stars.