Sri Lanka has detained 18 more suspects in its hunt for the bombers who killed more than 350 people on Sunday.

Treasury Secretary Steven Mnuchin delays a decision on whether to release Trump's tax returns to Congress, saying he needs until May 6, "after receiving the Justice Department's legal conclusions."

An explainer to House Democrats' impeachment dilemma: It's a political exercise, but doing nothing is irresponsible.

In October, the Supreme Court will hear cases that may result in a ruling on whether the Civil Rights Act of 1964, which bans discrimination based on race, color, religion, national origin, or sex, extends to sexual orientation and gender identity.

In what California health officials fear is a new normal, workers scramble to manage a measles outbreak on the heels of wildfires.

Aerial photos depict how human development is changing the Amazon, where deforestation is again on the rise.

An interactive map shows how average temperatures have changed over time at a specific location, down to the street-address level.

A new study finds 20 to 40 minutes of daily physical activity reverses the health risks of sitting.

Malawi is undertaking a landmark, large-scale immunization pilot with the first-ever malaria vaccine for children.

Visualizing the age distribution of the world's population from 1950 to 2018.

A US court rules "chalking" of vehicle owners' tires is unconstitutional, falling under "unreasonable searches and seizures."

So, what was it like to edit Oliver’s work without Oliver present? Well, aside from the most obvious—that we dearly missed him—it simply wasn’t as much fun. Writing gave Oliver such joy it was infectious to those around him. On editing Oliver Sacks posthumously.

See also: After realizing he has a unique visual condition, a writer sends a letter to Oliver Sacks to ask his opinion. Sacks responded, urging him to self-experiment.

A voice analysis algorithm could assist in diagnosing PTSD, useful because many who need help try to disguise their condition.

I have been reading books about time: theoretical physics, evolution, parallel universes. Recently I realized that I was reading them because I wanted one to tell me how to go back in time—to before my wife died of cancer. Matthew Salesses, “To Grieve Is to Carry Another Time.”

An audio tour of the leitmotifs in Wagner's "Ring" cycle.

A gender breakdown, by instrument, of the world's top 20 orchestras.

This week's ambience: three hours of white noise that evokes the crew sleeping quarters of the Starship Enterprise.