Here's the most detailed image yet of the Medusa Nebula. The image foreshadows the final fate of our sun, which will eventually become an object of this kind.
Nano particles in sunscreens have been found to harm marine worms, crustaceans, algae, fish and mussels. A new study shows their negative effect on sea urchin embryos, too.
India got a geologic boost that accelerated its drift toward Eurasia 80 million years ago, researchers suggest. The speed of the resulting impact created the Himalayas.
A new tool tracks the locations of whales along the U.S. west coast, in order to decrease the chances of whales colliding with ships or getting tangled in fishing gear.
With five active spacecraft now orbiting the planet, NASA has beefed up its traffic monitoring to make sure the Mars orbiters don't get too close to each other.
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