Friday, March 20, 2026 (at exactly 10:46 a.m. ET), marks both its triumphant return in the Northern Hemisphere and the spring equinox. Get ready for longer days, warmer weather, a ...
On March 20, winter officially ends with the arrival of the astronomical spring in the Northern Hemisphere.
If you look eastward at the same hour for two nights in a row, you’ll find that the stars seem to be in the same place. But ...
It's far from clear if the weather is planning to cooperate, but spring arrives — technically, at least — Friday.
Spring gets its official start Friday in the Northern Hemisphere with the arrival of the vernal equinox. But what does that ...
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New geological evidence suggests that the slow wobble of Earth’s axis may have triggered rapid climate swings during the Late Cretaceous greenhouse world.
A surprising FDA reversal on Moderna’s mRNA flu vaccine, early promise from a universal inhaled vaccine, and a desert fossil find that is reshaping spinosaurid history.
This crossword is inspired by the most recent issue of Scientific American. Read it here. Print readers, check your answers by selecting “Assist” above and then “Reveal Grid” or by selecting “Print” ...
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