Space-grown lettuce could help astronauts avoid bone loss

NASA is preparing to send humans to Mars sometime in the 2030s. The 3-year mission will expose astronauts to a long period of microgravity, which will cause them to lose bone mass. But now, scientists report transgenic lettuce ...

What happened to Mars's water? It is still trapped there

Billions of years ago, the Red Planet was far more blue; according to evidence still found on the surface, abundant water flowed across Mars and forming pools, lakes, and deep oceans. The question, then, is where did all ...

One express ticket to Jupiter, please

The team from the Desert Fireball Network at Curtin University has found that Earth acted as a slingshot to alter the orbit of a meteor and propel it back into deep outer space near Jupiter.

Rodents and a rocket carried these researchers' dreams to space

The human body evolved within the constant force of Earth's gravity. To prevent bone and muscle atrophy during their stays in space, astronauts must exercise every day. For researchers studying bone or muscle loss that might ...

Indigenous peoples key to saving threatened forests

More than a third of the world's vanishing pristine forests are managed by indigenous peoples under threat from development and deforestation, scientists said Tuesday, calling for greater protection.

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