Black Hole Came From a Shredded Galaxy
Astronomers using NASA's Hubble Space Telescope have found a cluster of young, blue stars encircling the first intermediate-mass black hole ever discovered.
Shuttle Team Reflects on Permanent Power-down of Discovery, Atlantis
Space shuttle Discovery was powered up hundreds of times during prelaunch processing over the course of 26 years of spaceflight. But Dec. 16, 2011 was different. That morning, technicians inside NASA Kennedy Space Center's orbiter processing facility powered the ship up — and then down — for the final time. Less than a week later, […]
Explosive Evolution Need Not Follow Mass Extinctions
Following one of Earth’s five greatest mass extinctions, tiny marine organisms called graptoloids did not begin to rapidly develop new physical traits until about 2 million years after competing species became extinct.
Environment’s Effects on Evolution of Survival Traits
AMHERST, Mass. – Advances in studying genes mean that scientists in evolutionary developmental biology or “evo-devo†can now explain more clearly than ever before how bats got wings, the turtle got its shell and blind cave fish lost their eyes, says University of Massachusetts Amherst evolutionary biologist Craig Albertson.