Some of the earliest Americans turn out to have been artists. A bone fragment at least 13,000 years old, with the carved image of a mammoth or mastodon, has been discovered in Florida, a new study reports.
While prehistoric art depicting animals with trunks has been found in Europe, this may be the first in the Western Hemisphere, researchers report Wednesday in the Journal of Archaeological Science.
Image of ancient mammoth or mastodon found on bone
Spitzer telescope snaps stunning image of 'ring' nebula
The Spitzer space telescope has snapped a striking false-colour image of the RCW 120 nebula, a vast cloud of gas and dust where stars have recently formed.
RCW 120 lies about 4,300 light-years away in the constellation Scorpius, just above the plane of the galaxy. It emits a broad range of colours in the infrared region, with wavelengths far beyond those we can see.
2 new elements officially added to periodic table
Remember the periodic table from high school chemistry? It just got a little bigger. Two new chemical elements, numbers 114 and 116, have been officially recognized by an international committee of chemists and physicists.
The elements last for less than a second and join such familiar neighbors as carbon, gold, tin and zinc. The new ones don't have approved names yet. That brings the total of known elements to just 114 because elements 113 and 115 haven't been officially accepted yet, said Paul Karol of Carnegie Mellon University.
Surprise find in Kepler planet hunt: lots of multi-planet systems
NASA's Kepler spacecraft, which is searching for Earth-mass planets orbiting sun-like stars, is finding hundreds of candidate planets, and many more multi-planet systems than expected.
Two years into a 3-1/2-year mission, NASA’s Kepler spacecraft, hunting for planets orbiting some 165,000 stars in the constellation Cygnus, is uncovering planet candidates by the hundreds.
Many of these inhabit multi-planet systems that are unexpectedly flat – the inclination of the planets’ orbits within each of these systems are essentially the same, a feature that may hold clues about how these systems formed and evolved.
Fukushima's Apocalyptic Threat Demands Immediate Global Action
Fukushima may be in an apocalyptic downward spiral.
Forget the corporate-induced media coma that says otherwise…or nothing at all.
Lethal radiation is spewing unabated. Emission levels could seriously escalate. There is no end in sight. The potential is many times worse than Chernobyl.
Scientists investigate twisters as crime-scene detectives
Weather scientists are retracing the footprints of this week's monstrous tornadoes the way detectives would investigate a crime scene: talking to witnesses, watching surveillance video and taking the measurements of trees ripped from the ground.
The result will be a meteorological autopsy report on the disaster, revealing how many twisters developed and how powerful they were.
Shrinking funds pull plug on alien search devices
In the mountains of Northern California, a field of radio dishes that look like giant dinner plates waited for years for the first call from intelligent life among the stars. But they're not listening anymore.
Cash-strapped governments, it seems, can no longer pay the interstellar phone bill. Astronomers at the SETI Institute said a steep drop in state and federal funds has forced the shutdown of the Allen Telescope Array, a powerful tool in the search for extraterrestrial intelligence, an effort scientists refer to as SETI.
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