A new theory explains how water first arrived on Earth
At the very beginning of its history, Earth was dry. How did it become a blue planet? A new theory could provide an answer.
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15,000 news cases every year: Papua New Guinea faces significant cancer burden
Papua New Guinea faces a significant cancer burden, with World Health Organisation (WHO) estimating about 9000 deaths and up to 15,000 new cases each year. The Post Courier newspaper reports the ...
earth21d
Clear evidence of liquid water, not just frozen ice, discovered on Mars
The existence of water on Mars has long been a subject of curiosity and debate. A recently published study presents compelling evidence of ancient “wave ripples” in rocks that were shaped by Martian ...
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How does raw water compare to tap water? A microbiologist explains why the risks outweigh the benefits
Bill Sullivan receives funding from the National Institutes of Health. Water that comes straight from natural sources, dubbed “raw water,” is gaining popularity. Raw water advocates reject ...
ZME Science29d
Curiosity Rover Uncovers 3.7-Billion-Year-Old Ripples That Suggest Mars Once Had Ice-Free Lakes
Illustration of Gale Crater filled with water. Illustration made using Midjourney AI. In the dusty, rust-colored expanse of Gale Crater on Mars, NASA’s Curiosity rover has uncovered a ghostly ...