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Researchers took gallium, a metal with a low melting point, and embedded it with magnetic particles to create a robot that can melt and move. Their inspiration? A sea cucumber.

The use of a vehicle that wrecked while carrying four members of the University of Georgia football program -- two of whom died in the crash -- was "unauthorized," according to a statement from the University of Georgia Athletic Association.

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The first two episodes of "The 1619 Project," a documentary series which premiered on Hulu on Thursday, brings to life the Pulitzer Prize-winning New York Times multimedia project created by Nikole Hannah-Jones.

The newly released videos of Tyre Nichols' police beating captured the brutality that his family and authorities had already foreshadowed: He was punched and kicked while being restrained. He pleaded to go home and repeatedly yelled for his mom.

A year ago, we couldn't have imagined people being so fearful of running out of eggs that they'd turn to smuggling cases across the Mexican border or renting chickens with portable coops to keep them in steady supply. But here we are.

News organizations across the country faced a dilemma Friday evening when Memphis police released video showing the brutal police beating of Tyre Nichols, a 29-year-old Black man, following a traffic stop.

The head coach of the Memphis Grizzlies joined other members of the NBA community Friday night in acknowledging the "senseless loss" of Tyre Nichols, saying the Black man's death following an encounter with Memphis police has hit his team particularly hard.

Video of Tyre Nichols' deadly arrest was released by the Memphis Police Department. These are the most critical moments.

On Wednesday, Meta justified its decision to restore Donald Trump's Facebook and Instagram accounts by claiming that the risk to public safety "has sufficiently receded."

What we know | Timeline | Key revelations

The Arctic was once a surprisingly warm place — and a haven for unusual creatures.

After five Memphis police officers were charged on Thursday in the death of Tyre Nichols following a traffic stop earlier this month, authorities say video footage of the encounter will be released to the public late Friday.

• Aryna Sabalenka makes history as first player competing under neutral flag to win grand slam • Patrick Mahomes will start despite ankle sprain • Quarterbacks in playoffs are getting younger

With only a thin and fractious majority in the House, the GOP is facing two years of struggling to set any kind of positive agenda. But one thing every elected Republican would agree on is the need to scrutinize the Biden administration.

President Joe Biden spoke to the parents of Tyre Nichols, according to a video posted to Twitter by a Washington Post reporter. In the short video of what the reporter says was a 10-minute call, Biden talked about the deaths of his wife and son.

President Joe Biden delivered a Thursday speech to hail economic progress during his administration and to attack congressional Republicans for their proposals on the economy and the social safety net.