Newfound pieces of human skull from “the Cave of the Monkeys” in Laos are the earliest skeletal evidence yet that humans once had an ancient, rapid migration to Asia. Anatomically modern humans first arose about 200,000 years ago in Africa. When and how our lineage then dispersed out of Africa has long proven controversial. Archaeological…
NASA’s Hubble Space Telescope recently observed two clusters full of massive stars that appear to be in the early stages of merging. The clusters are located some 170,000 light-years away in the Large Magellanic Cloud, a small satellite galaxy to our own Milky Way. What at first was thought to be only one cluster in…
A new report based on input from the science community outlines the most pressing objectives over the next decade for studying the sun and the far-reaching effects of solar activity. The report, released by the National Research Council, identifies specific science goals and provides recommendations for how to maintain robust and effective programs despite budgetary…
Scientists measuring the sun were shocked to find it’s the most perfectly round natural object in the universe. Until now experts have always assumed that the sun bulged a bit around the middle – making it very slightly flying-saucer shaped. But the bulge is so small that if the sun was the size of a…
The common ancestor of sharks and humans — and all jawed animals with a backbone for that matter — possessed a sixth sense: the ability to detect electrical fields under water. The anatomical tools for this ability, called electroreceptors and electrosensory ampullary organs, arose from the same cell population in both cartilaginous fishes (such as…
The newly discovered Phoenix cluster may be one of the most extreme objects ever observed, being among the most massive, luminous, and productive clusters in the universe. Located about 5.7 billion light-years from Earth in the constellation Phoenix, it has a mass roughly 2,500 trillion times that of the sun. Distributed between the galaxies in…
Scientists taking advantage of the versatility and new capabilities of the Relativistic Heavy Ion Collider (RHIC), an atom smasher at the U.S. Department of Energy’s Brookhaven National Laboratory, have observed first glimpses of a possible boundary separating ordinary nuclear matter, composed of protons and neutrons, from the seething soup of their constituent quarks and gluons…
Humans could be the only animals that are sensitive to fairness, suggests a new Royal Society Biology Letters study. It’s not that other animals are unfair. They just don’t seem to care as much about fairness as we do, or so this and other research concludes. Ingrid Kaiser of the University of Heidelberg and colleagues…
The primordial particles of matter that existed just after the big bang are now being re-created in the Large Hadron Collider (LHC) to advance understanding of the kind of matter that existed in the first seconds of the universe. Seconds after the big bang, quarks and gluons — basic building blocks of matter — were…
Archaeologists date relic, found in dig near Jerusalem, to the 12th century B.C.