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DC police respond after huge ‘8647’ etched into grass on the National Mall, aerial images show

The numbers "8647" — a phrase generally used to signal opposition to President Donald Trump — appeared etched into the grass ...

Trump administration live updates: Foreign surveillance program set to expire after Democrats reject short-term renewal

Get live updates and the latest news on the Trump administration as the House votes on a short-term FISA Section 702 ...

World’s largest whale graveyard discovered dating back 5.3 million years

Scientists have unearthed communities of marine life — including jellyfish, tubeworms and brittle stars — thriving on a ...

In 1987, the world swapped ozone-destroying CFCs for safer refrigerants; nearly 40 years later, scientists found the switch had been quietly raining a forever chemical across ...

New study reveals the alarming impact of CFC replacements on the environment, producing a persistent 'forever chemical' called trifluoroacetic acid (TFA) that contaminates water and human blood.

US Park Police investigate giant '8647' seen in grass on National Mall

U.S. Park Police officials are trying to find the origin and meaning of numbers displayed on the grass of the National Mall.