News
1,700-year-old Roman watchtower ruins discovered in Switzerland
Archaeologists in Switzerland have unearthed the remains of a fourth century A.D. watchtower built to protect the edge of the Roman...
8,000-year-old rock carvings in Arabia may be world's oldest...
Around 8,000 years ago, Middle Eastern hunters carved to-scale plans of their 'desert kite' traps onto rocks.
Some black holes may actually be tangles in the fabric...
A new paper discusses how light interacts with theoretical objects called "topological solitons" — kinks in the fabric of space-time...
Shark launches 3 attacks on surfer in Australia, in deadly...
The victim was surfing off the coast of South Australia when a shark dragged him under. Bits of wetsuit were later found.
What happens during a heart attack?
A heart attack, or myocardial infarction, happens when oxygen-rich blood does not reach a part of the heart muscle.
Global warming will likely cross dangerous 1.5 C threshold...
The U.N. weather agency has warned that El Niño and human-caused climate change will likely push temperatures into "uncharted territory."
Solar 'superflares' millions of times stronger than anything...
Intense solar storms may have delivered Earth its earliest building blocks of life, new research suggests.
Modern humans arose after 2 distinct groups in Africa mated...
Modern humans may descend from two or more genetically distinct streams that split but continued to occasionally mix over time in...
