'Toxic gases' as targets for new medicines

Gases once thought of only as environmental pollutants are now known to be produced by the body. They could potentially be used to develop drugs to treat diseases including heart failure and cancer.

Thermal scout finds trouble at solar plants

(Phys.org) -- At a 20-megawatt concentrating solar power (CSP) plant, some 10,000 mirrors reflect sunlight onto 10,000 receiver tubes, each of which must operate efficiently to get the maximum impact from the sun.

Discovery launch 'no earlier than' December 3

The final launch of the space shuttle Discovery has been delayed until at least December 3 so that repairs can be carried out on a hydrogen leak, the US space agency said Thursday.