"The landscape in Chile’s Atacama desert is Martian-like: dry, barren and flanked by volcanoes, and its high altitude and unpolluted skies make it a prime spot for stargazing. It was there, after a full night of such observation — and over a 4 p.m. breakfast — that astronomer Stefan Gillessen found himself in possession of some very special data. His observations showed a cloud of gas being stretched out, or “spaghettified,” about to be ripped apart, as it barreled toward the black hole at the center of our galaxy." Read more about A gas cloud collides with the black hole at the center of our galaxy, and we get to watch
Thursday February 18, 2014 there were four short presentations celebrating the 50 years anniversary for the discovery of the cosmic microwave background (CMB) as evidence for the Big Bang. The event took place at Harvard-Smithsonian Center for Astrophysics and featured Alan Guth (inflation), Bob Wilson (co-discoverer of the CMB), Bob Kirshner (cosmic acceleration), and Avi Loeb (future of the universe).
"Black holes, the ultradense collapsed objects predicted by Einstein’s theory of general relativity, are often depicted as voracious feeders whose extraordinary gravity acts like a one-way membrane: Everything is sucked in, even light, and virtually nothing leaks out.
"It has been called an elegant solution to a difficult problem. The notion that mysterious dark matter, which holds galaxies together, is made of primordial black holes that formed when dense regions of early Universe gravitationally collapsed was laid out in 1971 by physicist Stephen Hawking of the University of Cambridge, UK1. Read more about Search for primordial black holes called off
Alicia Soderberg studies the death of stars. Often, these final moments come as violent explosions known as . They're spectacular events, but catching one as it unfolds can be tricky. "You have to be in the right place at the right time, and often we're not," says the professor in Harvard's astronomy department. "So all you can do is do a stellar autopsy and go back and try to pick up the pieces and try to figure out what happened." Read more about Dying Stars Write Their Own Swan Songs