physical sciences
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9 Red-Hot Facts to Know About Steel, the World’s Hidden Mega-Polluter
Steel undergirds much of modern society. Buildings, cars, medical supplies, you name it, steel is there. But it also represents one of humanity’s greatest threats.
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UN Projects ‘Go Away’ Onto Side of Its Own Building in Fight With Activists
GLASGOW, SCOTLAND — Tuesday night saw a war of the projections in Glasgow. Activists sent a message to the United Nations, and the UN struck back, though the organisation may have accidentally told onlookers in Glasgow to “go away.”
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Microbes Might Make It Easier to Produce Rocket Fuel on Mars
New research details a biological solution for producing rocket fuel on Mars, but significant hurdles need to be overcome to make this intriguing idea work.
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When Will Force Shields Be Real?
When the aliens come for our organs, the tides for our coastal cities, the supervillains for their own nihilist world-obliterating amusement, how exactly will we protect ourselves? From decades of sci-fi, the answer is clear: some kind of force shield arrangement. If you’re trying to deflect bullets, impress small children, and/or save a major U.S.…