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How Uruguay achieved 98% renewable energy | The Optimist Daily
Uruguay's renewable energy success story could be the blueprint for global transition.
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New Webinar: How to Photograph the Milky Way, with Babak Tafreshi
Join Sky & Telescope Contributing Photographer Babak Tafreshi for a live webinar to learn the secrets of stunning Milky Way photography.
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Damage, design flaws in Oroville Dam spillway point to lengthy repairs, consultants say
The main spillway at Oroville Dam is riddled with design flaws and so badly damaged that an independent panel of experts hired by the state has concluded it’s probably impossible to repair the structure completely before the next rainy season begins in November. The panel of four engineering consultants, in a recent memo to the…
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How Astrophysicists Found a Black Hole Where No One Else Could
A new method could help scientists peer inside universe’s densest star clusters to find undiscovered black holes
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The Biggest Tree Canopy on the Planet Stretches Across Nearly Five Acres
In remote India, a visit to Thimmamma Marrimanu offers a spectacular lesson in the vital coexistence of living things
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Record low sea ice at both poles
Arctic sea ice reached its annual wintertime maximum extent, according to scientists at the NASA-supported National Snow and Ice Data Center (NSIDC) and NASA. The Arctic sea ice extent set a record low after a warm winter. Combining the Arctic and Antarctic numbers shows that the planet’s global sea ice levels on Feb. 13 were…