United States

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."

U.S. President Joe Biden on March 19 denounced the upsurge of violence against Asian-Americans, telling a community plunged into grief after this week's Atlanta murders that the nation must not be complicit in the face of racism and xenophobia.

According to data compiled by the U.S. Census Bureau and the National Center for Health Statistics

We take a look at some of the biggest events across the most globally recognized and followed sports in the world. Because of how much training and planning many of these competitions take, some of these sports only take place every two or four years, making it even more special when these events come round, drawing in crowds from all over the globe.

NASA's Mars Perseverance rover went on its first drive across the planet's surface after landing there in mid-February, the US-based National Aeronautics and Space Agency announced in a statement.

The Perseverance rover touched down the Red Planet's surface in the area of Jezero Crater on February 18. All the operations were conducted in the automatic mode.

NASA's newest Mars rover hit the dusty red road this week, putting 21 feet on the odometer in its first test drive.

The Perseverance rover ventured from its landing position on March 4, two weeks after setting down on the red planet to seek signs of past life.

The US space agency's Perseverance rover has wiggled its wheels and undertaken its first Martian drive.

It didn't move far - just 6.5m in total.

But Nasa  scientist believe it was a significant moment.

While the rover is still doing a lot of engineering checkouts, the minute 'the rubber' begins to move it should be considered as "explorer" on the surface of Mars.

Security has been tightened at the US Capitol in Washington in response to "a possible plot to breach" the building.

The move was prompted by intelligence that a militia group planned the attack for 4 March - the day conspiracy theorist group QAnon believes Donald Trump will return for a second term.

Capitol Police say they have uncovered intelligence of a "possible plot" by a militia group to breach the U.S. Capitol on March 4, nearly two months after a mob of supporters of then-President Donald Trump stormed the iconic building to try to stop Congress from certifying now-President Joe Biden's victory.

President Joe Biden heard firsthand from Texans clobbered by this month's brutal winter weather on Feb. 26 and pledged to stick with them "for the long haul" as he made his first trip to a major disaster area since he took office.