Enlarge / Northrop Grumman conducted a validation test of its GEM 63XL rocket motor on Jan. 21 at its Promontory, Utah, facility. (credit: Northrop Grumman)
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We Can Simulate Instant-Death Cores of Alien Planets
Carbon holds its crystal diamond structure at much higher pressures than scientists thought.
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Coronavirus variants: What they do and how worried you should be
Enlarge / Coronaviruses (credit: Getty | BSIP) Ever since the novel coronavirus, SARS-CoV-2, began jumping from human to human, it’s been mutating. The molecular machinery
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Harvard’s Plan to Blot Out the Sun Is a Great Idea, Says Bill Gates
Harvard University could start tests experimenting with blocking a section of sunlight this June.
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New Biden executive order makes science, evidence central to policy
Enlarge / U.S. President Joe Biden signs an executive order in the State Dining Room of the White House in Washington, D.C., on Wednesday, Jan.
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Biden’s approach to climate: Calling it a crisis and treating it that way
Enlarge / National Climate Advisor Gina McCarthy and Special Presidential Envoy for Climate John Kerry answer questions during a press briefing at the White House.
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