Rivers and streams cover much more of the planet than geologists previously estimated, according to a new study published in Science. In total, this new estimate shows that, excluding land with glaciers, Earth is covered by just under 300,000 square miles (773,000 square kilometres) of rivers and streams. That’s more square footage than the state of Texas, and it’s as much as 44 percent higher than previous counts. Read More >>
Experts have been warning of a looming shortage of helium for years, as the known reserves are being depleted. Now British researchers have discovered a large reserve of helium gas in Tanzania, using a new exploration method that offers hope for the future. Read More >>
If you hopped in the Tardis and travelled back four billion years, you’d find yourself on a hot, miserable wasteland of a planet with nary an oxygen molecule to breathe. Earth used to be an asphyxiating hellscape, but over the eons, tiny green microbes filled the air with oxygen. New research finds they’ve been at it much longer than we imagined. Read More >>
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