time lapse- some of this is old

CHICAGO, April 30 (Reuters) - It took about 40 years to find it, but scientists at Hewlett-Packard said on Wednesday they discovered a fourth basic type of electrical circuit that could lead to a computer you never have to boot up

TORONTO - An international research team, led by a Canadian stem-cell scientist, has successfully turned human embryonic stem cells into three types of heart cells.

About a century ago, the light from the explosion of a star within our Milky Way galaxy swept past Earth.

No one noticed.

Such explosions, called supernovas, can shine brightly in the night sky. But this dying star was close to the center of the galaxy, where thick dust and gas blocked most of the light, and astronomers of the era saw nothing.

How NASA's Phoenix Will Land on Mars

DNA Fingerprinting Could ID Viable Embryos. Finding may lead to improved pregnancy rates for in vitro patients, fewer multiple pregnancies.

HPV Tied to Better Tongue, Tonsil Cancer Outcomes