event
COVID-19 vaccine
The World Health Organization issues its first emergency use validation for a COVID-19 vaccine.
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In 2026, December 31 falls on a Thursday. Here are 3 notable moments from the same calendar date.
This year (2026), December 31
falls on a Thursday
Last year it was
a Wednesday
Next year it will be
a Friday
event
The World Health Organization issues its first emergency use validation for a COVID-19 vaccine.
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NASA succeeds in putting the first of two Gravity Recovery and Interior Laboratory satellites in orbit around the Moon.
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Both a blue moon and a lunar eclipse occur.
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