World Topics

Fecal fossils show Neanderthal diet

Jun 26, 2014

Fecal fossils show Neanderthal diet

The discovery of the oldest known human excrement is offering valuable scientific insight into the lifestyle of Neanderthals who lived in Spain around 50,000 years ago. Scientists said on Wednesday they had found five samples of human fecal matter at an archaeological site called ...

Space tour balloon passes critical test flight

Jun 26, 2014

Space tour balloon passes critical test flight

An Arizona company has successfully completed the first small-scale test flight of a high-altitude balloon and capsule being developed to let tourists float 20 miles (32 kilometers) above the Earth. World View Enterprises of Tucson said it launched the flight last week from Roswell, ...

Monarch butterflies navigate by magnetism, sun

Jun 26, 2014

Monarch butterflies navigate by magnetism, sun

The North American monarch butterfly uses the sun as well as the planet’s magnetic field as navigational tools for its remarkable long-distance migration, scientists say. The butterflies have long been known to use a type of solar compass in the brain. Yet they are ...

Items from ancient Sumeria's Ur found in cupboard

Jun 26, 2014

Items from ancient Sumeria's Ur found in cupboard

It is amazing what you can find when you do a good cleaning. Bristol University in Britain learned this firsthand when researchers discovered a box containing materials from archaeologist Sir Leonard Woolley’s dig of the Sumerian city of Ur tucked away on top of ...

Designer T cells fight viruses after transplants

Jun 26, 2014

Designer T cells fight viruses after transplants

Bone marrow transplants save thousands of lives, but patients are vulnerable to severe viral infections in the months afterward until their new immune system kicks in. Now scientists are developing protection for that risky period: injections of cells specially designed to fend off up ...

3-D imaging detects more breast cancer than mammography

Jun 26, 2014

3-D imaging detects more breast cancer than mammography

The largest study of its kind has shown that three-dimensional imaging finds more breast cancers than traditional mammography alone, according to research published on Tuesday. The technique, called 3-D mammography or tomosynthesis, was approved by U.S. regulators in 2011 after initial research showed it ...

Jun 24, 2014

Schizophrenia, cannabis link found

Genes that increase the risk of a person developing schizophrenia may also increase the chance they will use cannabis, researchers said Tuesday after studying more than 1,000 users of the drug. The results chime with previous studies linking schizophrenia and cannabis, but suggest the ...

Shape of Higgs boson is clearer

Jun 23, 2014

Shape of Higgs boson is clearer

Physicists on Sunday said they had learned more about the identity of the Higgs boson, the elusive particle whose groundbreaking discovery was announced nearly two years ago. Work at the Large Hadron Collider (LHC) — the particle smasher on the French-Swiss border where the ...