Colorado

Two endangered Syrian brown bears were headed to a new life in the United States on July 18 after being rescued from cramped conditions in a Lebanese zoo, two charities said.

Homer and Ulysses, each aged 18 and weighing 130 kilos, had been living in a zoo near the southern city of Tyre, animal rights association Animals Lebanon said.

With rubble from an asteroid tucked inside, a NASA spacecraft fired its engines and began the long journey back to Earth on May 10, leaving the ancient space rock in its rearview mirror.

The trip home for the robotic prospector, Osiris-Rex, will take two years.

He flew like a no ordinary pilot, he lived like a star!

Thirteen people at a COVID-19 vaccination site in Colorado had adverse reactions to the Johnson & Johnson vaccine on Wednesday — shutting down operations for the day, a report said.

Officials did not disclose the types of reactions suffered by less than 1 percent of the more than 1,700 people given shots at Dick's Sporting Goods Park in Commerce City, the Denver Gazette reported.

The helicopter carrying Czech billionaire Petr Kellner, 56, just missed clearing an Alaskan ridge by three to five metres when it crashed, preliminary investigations show.

Mr Kellner, who is worth an estimated US$17.5 billion (A$23 billion) according to Forbes, was one of five passengers on board the fatal flight on Saturday (local time).

A helicopter crash in Alaska left five people dead late on Saturday, including one of the richest people in Europe, after the chopper went down during what authorities say was likely a backcountry heli-skiing trip.

Ten people were killed Monday, including a police officer, when a gunman opened fire at a supermarket in Boulder, Colorado, the second mass shooting in the U.S. in a week.

"These were people going about their day, doing their shopping," Boulder District Attorney  said at a late-night press briefing. He described the day's events as "a tragedy and a nightmare."

A gunman opened fire at a supermarket in Boulder, Colorado, on Monday afternoon, killing at least 10 people, including a police officer who was the first responder on the scene. This comes just days after eight women were killed in three separate shootings in Atlanta, Georgia.

A gunman opened fire at a supermarket in Boulder, Colorado, on March 22, killing 10 people, including the first police officer to arrive on the scene, before the bloodied suspect was arrested in the second deadly U.S. mass shooting in a week.

Boeing 777s have been grounded around the world after the US aviation regulator announced an investigation into the United Airlines flight that suffered an engine failure on Saturday, showering debris over homes in Denver.