Watching a tree grow might be more frustrating than waiting for a pot to boil, but luckily for biologists, there are tree rings. Beginning at … Read more
The most detailed ultraviolet light surveys ever made of the two major galaxies that are closest to our own Milky Way, the Large and Small … Read more
Astronomers have found a galaxy turning gas into stars with almost 100 percent efficiency, a rare phase of galaxy evolution that is the most extreme … Read more
The most fertile bursts of star birth in the early Universe took place in distant galaxies containing lots of cosmic dust. These galaxies are of … Read more
A new study has uncovered more evidence that black holes form before the galaxies that contain them. The finding could help resolve a long-standing debate, says the study’s lead scientist. Marianne Vestergaard, a postdoctoral fellow in astronomy at Ohio State, came to this conclusion when she studied a collection of very energetic, active galaxies known as quasars as they appeared some 12 billion years ago, when the universe was only one billion years old. While the quasars were obviously young — they contained large stellar nurseries in which new stars were forming — each also contained a very massive, fully formed black hole.