ScienceDaily: Space & Time News

Monster black hole discovered at cosmic dawn Posted: 25 Feb 2015 11:24 AM PST The discovery of the brightest quasar in the early universe, powered by the most massive black hole yet known at that time presents a puzzle to researchers: How could something so massive and luminous form so early in the universe, only 900 million years after the Big Bang?

Physicists offer a solution to the puzzle of the origin of matter in the universe Posted: 25 Feb 2015 10:22 AM PST Most of the laws of nature treat particles and antiparticles equally, but stars and planets are made of particles, or matter, and not antiparticles, or antimatter. That asymmetry, which favors matter to a very small degree, has puzzled scientists for many years. Physicists offer a possible solution to the mystery of the origin of matter in the universe.