A promising stem cell therapy approach could soon provide a way to regenerate heart muscle damaged by heart attacks.

If the German paleontologist Eberhard Fraas is remembered for anything, his efforts to discover and describe the impressive dinosaurs of Tanzania’s Tendaguru beds must be at the top of the list. Thanks to a tip about the site from local mining engineer Bernhard Wilhelm Sattler, in 1907 Fraas began to remove impressive Jurassic dinosaurs simultaneously strange and familiar. The site was Africa’s own Late Jurassic graveyard — one full of spectacular creatures that seemed quite similar to Brachiosaurus, Allosaurus, Stegosaurus, and other dinosaurian celebrities found in North America’s ever-productive Morrison Formation. Fraas was delighted to find such a wonderful place –- the dinosaur bones “spoke in an eloquent language of the extinct primeval world”, he later wrote –- and the imposing Giraffatitan which stands in the Museum für Naturkunde in Berlin is a reconstructed testament to Fraas’ efforts.

Elephants took 24 million generations to get to their current size, a study has shown.

Mammals evolved from the size of a mouse to that of an elephant during the last 24 million generations.

Wikipedia has taken its English-language content offline as part of a "day of darkness" in protest at US anti-piracy laws that it says could "fatally damage the free and open internet" and "severely limit people's access to online information".

TWO NASA spacecraft are slipping into orbit around the moon to try to answer persistent questions about Earth's celestial companion. How did the moon form? Is the lunar core still molten? And why is the moon such an uneven lump?

Nearly 40 years after Nasa last did it, Chinese space agency announces its 'preliminary plan for a human lunar landing'

Nearly 40 years after the cold grey soil of the moon was last disturbed by bounding humans, the lunar surface has become an official destination once more.

(AP) Jerusalem - A rare clay seal found under Jerusalem's Old City appears to be linked to religious rituals practiced at the Jewish Temple 2,000 years ago, Israeli archaeologists said Sunday.