The mysterious common ancestor of all life on Earth may have been more complex than before thought—a sophisticated organism with an intricate structure, scientists now suggest.
Ozone-depleting gases from an eruption in a volcanically active region of Central America could thin Earth’s ozone layer for several years, scientists say. Current levels of the chemicals bromine and chlorine in the stratosphere – where ozone protects life on Earth from harmful ultraviolet radiation – could double or even triple with an eruption, German…
The primates have an altruistic ‘tally chart’ that keeps track of social rewards and gifts.
Two studies shed additional light on a murky question: How did the cosmic fog that enveloped the universe in its early days dissipate? Author Metanexus Editors
Despite government efforts to ban unapproved stem cell treatments, companies around China still offer them openly.
A mysterious wave discovered in the Milky Way suggests our galaxy is still ringing like a bell from a galactic collision, a crash that possibly occured within the last 100 million years, scientists say. Astronomers discovered that stars north and south of the midplane of the galaxy are distributed differently, suggesting that some recent event…
Physicists have taken a step forward in their efforts to understand why the Universe is dominated by matter, and not its shadowy opposite antimatter. Physicists think the intense heat of the Big Bang should have forged equal amounts of matter and its “mirror image” antimatter. Yet today we live in a Universe composed overwhelmingly of…