We’re Slipping on Post-Vaccination Rules
But across the country, states are rushing to lift mask mandates, tolerance for physical distancing is flagging, and vaccinated people are amending the new guidelines as they see fit. Some,…
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Carnegie Mellon University
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How Long After Getting a COVID-19 Vaccine Is It Effective?
The jab itself “is momentous,” said Bhattacharya, who shared photos of his own injections on Twitter in hopes of swaying hesitant peers. But each injection is merely a precursor of…
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Biden’s Stimulus Is Also (Sort of) a Climate Bill
This isn’t to say it’s a climate bill, per se. But it is part of the broader climate agenda being advanced by the Biden administration. First, the bill devotes $30.5…
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One of the Milky Way’s Biggest Black Holes Hid a Surprise
In the Milky Way, new stars arise from cosmic gas enriched by previous generations of stars that unleashed all kinds of heavy metals—which, in astronomy parlance, is anything heavier than…
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Black Hole Collisions Are Changing Our View of the Cosmos
Yet with a sample size of one, such assertions could only be educated guesses, says Carl Rodriguez, an astrophysicist at Carnegie Mellon University. Now data from LIGO’s latest catalog show…
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