The Avengers are mighty, but not enough to beat themselves. The Marvel and Disney sequel earned a staggering $187.7 million in its debut weekend, making it the second biggest U.S. opening of all time according to Rentrak estimates Sunday.

But "Avengers: Age of Ultron" failed to top the all-time record of the first film's $207.4 million debut in 2012.

Howard University freshman Alanna Walton knew something was different about the professor teaching her introduction to computer science course.

First, there was her name: Professor Sabrina. She was an African American woman, kept office hours until 2 a.m. if that's what it took to see everyone, and had an additional title: Google In Residence.

Dumping social media stocks that show any sign of weakness is trending on Wall Street.

Shares of LinkedIn Corp. plunged 21 percent in after-hours trading Thursday after the professional networking service gave a disappointing outlook for the second quarter, weighed in large part by its pending purchase of online learning company Lynda.com.

Chatting on the red carpet with Bradley Cooper and Jennifer Lawrence; recording a country song with Clint Black; working a relief mission with Patricia Arquette; receiving a serenade from Michael Bolton on a Caribbean island. These are just some of usthe WOW! moments possible for everyday donors through a new online charity service that combines star power with digital marketing savvy to contribute millions to celebrity causes worldwide.

Its name is Chideo — a mashup of the words charity and video — and it's already enlisted more than 100 VIP participants, ranging from YouTubers and sports figures to Academy Award winners like Arquette, who gave a shoutout to the effort at this year's Oscars.

Health officials now think Ebola survivors can spread the disease through unprotected sex nearly twice as long as previously believed.

Scientists thought the Ebola virus could remain in semen for about three months. But a recent case in West Africa suggests infection through sex can happen more than five months later.

Hang up on Pope Francis and you might get a hug.

Vatican newspaper L'Osservatore Romano says earlier this week, Francis dialed an ailing Italian man to comfort him. Francis has a habit of calling people who he has heard are suffering and telling them "Hello, I'm Pope Francis" when they answer their phone.

A New Jersey man is accused of stealing enough musical equipment to outfit quite a few bands.

Philadelphia police said Friday that Jason Mackenzie of Berlin, New Jersey, has been charged with burglary and related offenses in a break-in at a self-storage unit on Castor Avenue.

A Tennessee woman who ran the Boston Marathon is looking for the man she kissed on a dare.

Barbara Tatge says her daughter, Paige, dared her to kiss a random, good-looking man and take a photo of it as she ran her first Boston Marathon on April 20.

Two years after fleeing from her home in Damascus, 22-year-old Rahaf Abdullah is working at a gleaming mall in Iraq's Kurdish region, selling sweets to local women who largely refuse to take such jobs.

While the mall job is a rite of passage for teenagers in America, in Iraq's conservative and relatively well-off Kurdish region the idea of women working — particularly in menial or retail jobs — is frowned upon. That has created opportunities for some of the tens of thousands of Syrian refugees and displaced Iraqis who have sought refuge here.

Actor Nicholas Brendon says a warrant for his arrest in Florida is a "huge misunderstanding."

Brendon, who has appeared on the television series "Buffy the Vampire Slayer" and "Criminal Minds," was arrested in March in Tallahassee after a disturbance at a hotel.