Merrit Kennedy

A man entered the National Gallery in London on Saturday afternoon, approached a painting by British master Thomas Gainsborough, and proceeded to attack it with a "sharp object."

A Metropolitan Police Service spokesman tells NPR that a 63-year-old man named Keith Gregory, "of no fixed abode," was charged with causing criminal damage to a National Gallery painting.

The head of the House Intelligence Committee, Rep. Devin Nunes, R-Calif., said that there is still no evidence that the Obama administration wiretapped Trump Tower, as President Trump has claimed, even after the Department of Justice provided to the committee documents related to the allegation on Friday.

In 2016, a mass bleaching event caused unprecedented destruction to the Great Barrier Reef and other coral reefs around the world.

Now, a new study in Nature has concluded that securing a future for coral reefs "ultimately requires urgent and rapid action to reduce global warming."

It finds that local measures, such as protecting reefs and water quality, ultimately yield little protection against bleaching caused by higher water temperatures.

This frog really lights up a room.

The South American polka dot tree frog initially appears unremarkable. But researchers in Argentina recently got a huge surprise when they shone an ultraviolet light on it, revealing that the creature is actually fluorescent and glows bright blue-green.

Updated at 2:40 p.m. ET

The Justice Department has announced charges against four people, including two Russian security officials, over cybercrimes linked to a massive hack of millions of Yahoo user accounts.

The top U.S. Marine vowed in a Senate hearing to hold members of the Marine Corps accountable for sharing nude photos of female Marines online. But many members of the Senate Armed Services Committee responded with tough questions Tuesday, asking why more isn't being done to protect female service members.

Scientists have caught sight of a star extremely close to what they think is a black hole, whizzing around it at an extraordinary speed — at least twice an hour. As NASA put it, "This may be the tightest orbital dance ever witnessed for a likely black hole and a companion star."

The pair is in our galaxy, in an area dense with stars some 14,800 light-years from Earth.

Lynne Stewart, a leftist lawyer who defended radicals and was eventually convicted in a terrorism case herself, has died at 77.

Her son Geoffrey Stewart told NPR that Stewart died Tuesday. She was released from prison in 2014 because she suffered from terminal cancer.

Stewart, who defended Black Panthers and Weather Underground members over the course of her career and considered herself a "people's lawyer," is perhaps best known for representing Egyptian cleric Omar Abdel Rahman in his trial over plotting to attack New York City landmarks.

Brazil's recession was already of historic proportions. Today, government figures confirm that it has grown even worse.

The economy last year actually dipped more sharply than expected. The national gross domestic product contracted by 3.6 percent in 2016, statistics agency IBGE said Tuesday.

Israel has passed a new law that allows it to bar entry to foreign activists who support a boycott of the country.

The law takes aim at the BDS movement, which emerged more than a decade ago and is an acronym for "boycott, divest and sanction." The BDS movement aims to put economic pressure on Israel in support of Palestinian independence.

Would-be visitors "who support a boycott of Israel or who represent an organization that publicly calls for a boycott" may be banned, as NPR's Daniel Estrin reports from Jerusalem. Here's more from Daniel:

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