Physicists in Australia claim to have simulated time travel using fairly standard optical equipment on a lab bench. They say they have prepared photons that behave as if they are travelling along short cuts in space–time known as "closed time-like curves", and add that their work might help in the

Researchers are now proposing that evidence of the origins of life may very well be hidden on the Moon, where the earliest organic traces in existence may have been preserved in lava during the satellite's fiery adolescence. Views:Christopher Dwane to state "evidence" doesn't mean proof. What they

Every 13 months, Earth and Jupiter have a close encounter.  Astronomers call it an "opposition" because Jupiter is opposite the Sun in the sky. Our solar system’s largest gas planet rises in the east at sunset, and soars overhead at midnight, shining brighter than any star in the night sky. This

The lorries are a chief reason why Delhi’s air is now more toxic than any other city’s on earth. Admittedly Beijing has a worse reputation, with its visible smog from particulates of 10 microns or smaller, known as PM10. Views:Bill DormanAir pollution remains a problem in many parts of Asia. While

One Russian-based company, called Zdavprint, appears to see great potential in 3D printing casts. It’s not only them that sees the potential that this new technology could provide to the old tradition of setting, placing and holding a broken bone in place to heal. Maxfield Capital also realizes the