Researchers have created a protein 'switch' that instructs cancer cells to produce their own anti-cancer medication and lab tests showed it can activate a powerful cell-killing drug when the device detects a marker linked to cancer.

The goal in cancer treatment is to some day cause cancer cells to self-destruct  and spare healthy tissue, damage to all tissue being the downside to current treatments like chemotherapy.

In Doomsday Comet Elenin Goes Out With A Whimper we dismissed concerns from prophets of doom that a tiny comet 22 million miles away would make any difference in our lives - but we never said anything at all about a sunspot and what it might due to your wireless PS3 connection at a crucial moment in "Gears of War".

Behemoth sunspot 1302 unleashed another strong flare on Saturday morning, an X1.9-category blast at 5:40 am EDT. NASA's Solar Dynamics Observatory (SDO) recorded the extreme ultraviolet flash.

While concern about water is always real, scare tactics like virtual water do more harm than good for rational policy making. Objective analyses show we don't have a food issue looming that science and technology can't address.

A new study in Nature shows that genetic parasites invaded the mammalian genome more than 100 million years ago and dramatically changed the way mammals reproduce.

The molecular changes allowed mammals to carry their developing young within the womb rather than laying them in nests or carrying them around in pouches - the uterus was transformed. 

The findings published online Sept. 25 in the journal Nature Genetics describe in unprecedented detail the molecular changes that allowed mammals to carry their developing young within the safety of the womb rather than laying them in nests or carrying them around in pouches.

People concerned about climate change recently can look no farther than the world's rainforests to see the diversity that arises from different ecological conditions.  History and geology, not current ecology, are likely what has made tropical forests so variable from site to site, according to a new study published in Science.

Measurements of variation in biodiversity from place to place, called beta diversity, are actually very similar as you move from the tropics to the poles when you account for the number of species present in the first place.  And forests in Canada and Europe may have much more in common with tropical rainforests than previously believed. 

Research examined 19,349 twins between the ages of 12 and 41 yrs of age and had participants complete  a questionnaire at the start and end of the study to compare alcohol intake with the risk of developing asthma over 8 yrs. The results showed that the lowest risk of asthma was seen in the group which had a moderate intake of alcohol, as less than 4% of those who drank 1-6 units per week developed asthma.

Drinking alcohol in moderate quantities can reduce the risk of asthma, the researchers concluded. Drinking 1-6 units of alcohol a week could reduce the risk of developing the condition.