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The social network says hate speech accounts for a tiny fraction of the posts people see. It's relying on automated systems to catch it, but is under pressure to do better.

The Centers for Disease Control and Prevention updated its recommendations one week before the holiday, advising that Americans be careful amid an explosion in the spread of the coronavirus.

Michael J. Fox talks about his new memoir, "No Time Like the Future: An Optimist Considers Mortality."

Arecibo has been a vital resource for radio astronomy, astrophysics, atmospheric studies and solar system astronomy. Now, it's set to close due to structural damage.

Midshipman 1st Class Sydney Barber reflects on the historic nature of her selection as leader of the academy's 4,400 students, her plans for the future and what the appointment means to her family.

Along with state polls, national polls may have been significantly further off from the election results than in 2016. Many appear to have missed support for Trump and down-ballot GOP candidates.

Space is the best place — maybe the only place — to get a complete picture of how climate change is affecting the Earth's oceans. And what happens in the ocean does not stay in the ocean.

Grace Moore, 12, is one of the youngest composers to write music performed by the New York Philharmonic. She wrote "Summer" during the early days of the pandemic.

As the U.S. prepares for what will likely be the largest vaccination program in its history, the Trump administration plans to loan $590 million to a Connecticut company with a novel technology.

Democrats have condemned what they call inappropriate closeness between the White House and Justice Department in the Trump era. That means picking an attorney general and other personnel is tricky.