Copyright 2015 NPR. To see more, visit http://www.npr.org/.

Protesters who have turned out in the streets of Baltimore for several days to express anger over the police custody death of Freddie Gray have promised their largest demonstrations to date this afternoon.

Organizers and supporters, who vowed to "shut down" the city, were using social media to share video of crowds gathering to protest the April 12 death of Gray, who suffered a fatal spinal cord injury while in custody.

Updated at 3:40 p.m. ET

Two Australians and a woman from the Philippines convicted nearly a decade ago of drug smuggling in Indonesia have been informed by authorities that their execution by firing squad is imminent.

"Indonesian authorities today [Saturday] advised Australian consular officials that the executions of Andrew Chan and Myuran Sukumaran will be scheduled imminently at Nusa Kambangan prison in central Java," Australian Foreign Minister Julie Bishop said in a statement.

Read this post on Storify.

Copyright 2015 NPR. To see more, visit http://www.npr.org/.

One day soon, you may be waiting in line for a coffee, eyeing a pastry, when your smart watch buzzes with a warning.

Flashing on the tiny screen of your Apple Watch is a message from an app called Lark, suggesting that you lay off the carbs for today. Speak into the Apple Watch's built-in mic about your food, sleep and exercise, and the app will send helpful tips back to you.

It has been five years since the so-called flash crash on Wall Street raised big questions about computerized trading. What caused the flash crash has been a topic of debate ever since. U.S. officials revived the debate this week by arresting a little-known trader in London.

May 6, 2010 started out as an ordinary trading day on Wall Street. Then, at around 2:45 in the afternoon, the Dow Jones Industrial Average plunged nearly 600 points within the space of a few minutes, before correcting itself.

Updated at 4:50 p.m. ET

Authorities in Nepal say nearly 1,400 people are confirmed dead following a powerful earthquake near the capital Kathmandu, where homes and ancient temples collapsed amid the intense temblor and strong aftershocks.

The Hubble Space Telescope this week celebrates 25 years in Earth's orbit. In that time the telescope has studied distant galaxies, star nurseries, planets in our solar system and planets orbiting other stars.

But, even with all that, you could argue that the astronomer for whom the telescope is named made even more important discoveries — with far less sophisticated equipment.

Pepe Guerrero is a doorman at a high-rise building in Malaga, on Spain's Mediterranean coast. From his post he looks out at the turquoise blue waters — where hundreds of Arab and African migrants have drowned in recent weeks.

"They're people — human beings like us," he says. "Searching for a better life."

The Vietnam War changed the National Guard.

During that conflict, joining the guard was seen as a way to avoid the draft; during America's recent wars, the guard and reserve made up nearly half the forces in Iraq and Afghanistan.

You can trace the transformation of the guard back to the few units from it that did go and fight in Vietnam. And ahead of the 40th anniversary of the end of that conflict, several former guard members — who are also Vietnam vets — met up at the Veterans Of Foreign Wars Post in Carmel, Ind., just north of Indianapolis.

Pages