ASTRONOMY
Visions of the night sky Star trails and horse heads are among sights captured by stargazers vying for the title of Astronomy Photographer of the Year. View a selection in our gallery
HEALTH
Hospitals: the home of future technology Computer-brain interfaces and eye tracking may still be far from everyday use, but they are finding early applications in hospitals. Find out more in Â鶹´«Ã½‘s online “Innovation” column
SPACE
Why future astronauts may be sent to “gravity holes” A task force reviewing NASA’s plans for space flight is mulling the possibility of missions to the gravitational “sweet…
