astronomy
November 13, 2013
The 2013-14 Frontiers of Astronomy Lecture Series will continue with a talk by Risa Wechsler, associate professor in the physics department at Stanford University, on Thursday, Nov. 14, at 8 p.m. in the Murch Auditorium at the Cleveland Museum of Natural History. Wechsler, a member of the Kavli…
September 23, 2013
A modified law of gravity correctly predicted, in advance of the observations, the velocity dispersion—the average speed of stars within a galaxy relative to each other—in 10 dwarf satellite galaxies of the Milky Way’s giant neighbor Andromeda. The relatively large velocity dispersions observed in…
January 22, 2013
Peering deep into the dim edges of a distorted pinwheel galaxy in the constellation Ursa Major (the Great Bear), astronomers at Case Western Reserve University and their colleagues have discovered a faint dwarf galaxy and another possible young dwarf caught before it had a chance to form any…