Category Archives: CNN – World

Multiple star explosions may have contributed to a mass extinction on Earth

Multiple star explosions may have contributed to a mass extinction on Earth

Simultaneous explosions of stars, called supernovae, may have led to one of Earth’s mass extinctions 359 million years ago, according to new research. Several global extinction events occurred during Devonian period, which lasted from 359 million to 419.2 million years ago, and ended it as well. The collective events resulted in the loss of 70…MORE

Massive lava tubes on the moon and Mars could be used by astronauts

Massive lava tubes on the moon and Mars could be used by astronauts

Lava tubes beneath the surface of Mars and the moon could be, respectively, 100 and 1,000 times wider than lava tubes on Earth, which could provide shelter and create exploration opportunities for astronauts in the future, according to a new study. Lava tubes are caves created by lava as it flows from a volcanic vent…MORE

Dinosaurs’ unique bone structure helped them support their large weight

Dinosaurs’ unique bone structure helped them support their large weight

Some dinosaurs were so big the ground would have shaken while they walked. But how did they carry such massive loads? Dinosaurs likely had a different bone structure to mammals and birds that was uniquely capable of supporting huge weights, a new study has found. A team of paleontologists, mechanical and biomedical engineers examined the…MORE