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Mars as viewed by NASA's Hubble Space Telescope

Space

Rusty crust made Mars warm and wet

Earth

Clues from the Dead Sea could explain ancient drying of the Mediterranean

Environment

Why praying for rain appears to work 鈥� but only in some places

Dinosaurs could survive in cold conditions, as illustrated by Beipiaosaurus, a feathered dinosaur that lived between 127 and 121 million years ago

Earth

Giant Arctic continent launched dinosaurs to world domination

Physics

Physicists create formula for how many times you can fold a cr锚pe

Physics

The mystery of how volcanic lightning happens has been solved

Image of night sky

Space

Star that seemed to vanish more than 130 years ago is found again

computer-generated view of Mars at the boundary between darkness and daylight, with an area including Gale Crater

Space

Mars may once have had a much larger moon

Debris litters a beach after cyclone Mekunu hit Salalah, Oman in May 2018

Physics

Ocean waves from a tropical storm could be focused like laser beams

SACO, ME - JUNE 10: American Shad swim past the observation window in Brookfield Renewables', Cataract hydro electric station fish passage on the Saco River, in Saco, on Thursday, June 09, 2016. (Photo by Carl D. Walsh/Portland Portland Press Herald via Getty Images)

Life

Swimming in a school may help fish hear dolphins鈥� ultrasound clicks

Woman Using Nose Spray; Shutterstock ID 173816945; purchase_order: -; job: -; client: -; other: -

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The usual way to spray medicine up your nose may not be the best

CX6R9A Green soy plant leaves in the cultivate field, against the sun

Life

The way that leaves flutter can reveal when plants need more water