NASA is looking for applicants to spend a year pretending they are isolated on Mars.
The space agency wants people to apply so that it can prepare for eventually sending astronauts to the red planet.
Applications opened on Friday for four people to live for a year in Mars Dune Alpha.
The 1,700-square-foot Martian habitat, created by a 3D-printer, is based inside a building at Johnson Space Centre in Houston, Texas.
There will be no windows, and the applicants will consume ready-to-eat space food.
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The paid volunteers work a simulated Martian exploration mission which includes spacewalks, limited communications back home, restricted food and resources and equipment failures.
Three of these experiments are being planned by NASA, with the first one starting in the autumn in 2022.
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Lead scientist Grace Douglas said: “We want to understand how humans perform in them. We are looking at Mars realistic situations.”
Applicants have to hold a master’s degree in science, engineering or maths, or have pilot experience.
The agency also says only American citizens or permanent US residents are eligible for the experiment, which echoes 2015 film The Martian, starring Matt Damon.
They have to be aged between 30 and 55 and in good physical health, with no dietary issues and not prone to motion sickness.
Canadian astronaut Chris Hadfield says it shows NASA is looking for people who are close to astronauts, which would make it a better experiment if the participants are more similar to the people who will really go to the planet.
He said previous Russian efforts at a pretend mission called Mars 500 did not end well, partly because the people were too much like everyday people.
Mr Hadfield spent five months in orbit in 2013 at the International Space Station, where he played guitar and sang a cover video of David Bowie’s hit Space Oddity.
He said: “Just think how much you’re going to be able to catch up on Netflix. If they have a musical instrument there, you could go into there knowing nothing and come out a concert musician, if you want.”
The experience could involve “incredible freedom” in a “year away from the demands of your normal life”, he added.
Meanwhile, NASA’s newest Mars rover, called Perseverance, failed in its first attempt to pick up a rock sample to eventually be brought back to Earth.
The machine drilled into the floor of the planet’s Jezero Crater to extract a finger-sized sample from slabs of flat rocks.
Although the drill seemed to work as intended, no rock appeared to have ended up in the sample tube.
A 43-year-old man was shot dead by police after calling 911 to report intruders had entered his home in Las Vegas.
Brandon Durham was at home with his 15-year-old daughter when he called the emergency line to report armed intruders were trying to break into his property on 12 November.
Bodycam footage shows Mr Durham struggling with a person over a knife in the moments before he was shot and killed at the scene.
“The loss of life in any type of incident like this is always tragic, and it’s something we take very seriously,” Las Vegas Metropolitan Police Assistant Sheriff Dori Koren said on Thursday.
The force is investigating the incident.
Mr Durham called 911 to report multiple people were outside shooting at his residence in Las Vegas’ Sunset Park neighbourhood, where he had been staying with his 15-year-old daughter, Sky News’ US partner network NBC reports.
It was one of multiple emergency calls reporting a shooting in the area.
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Mr Durham then said someone had managed to get into his home through the front and back doors of the property and he was locking himself in the bathroom, according to a police statement from 14 November, two days after the incident.
Officers reported to the scene at approximately 12:40am and could hear screaming from inside the residence.
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One of the officers, Alexander Bookman, kicked open the front door and once inside, saw Mr Durham and another individual, later identified as 31-year-old Alejandra Boudreaux, struggling over a knife in a doorway.
Mr Bookman ordered them to drop the knife and about two seconds later, the officer fired the gun and Mr Durham appeared to be struck, the bodycam footage shows.
Both Mr Durham and Mr Boudreaux fell to the ground and the officer fired another five shots. Roughly three seconds are believed to have gone by between the first and last shot, NBC reports.
Attempts were made to save the 43-year-old but he died at the scene.
Ms Boudreaux was taken into custody and is facing charges of home invasion with a deadly weapon; assault with a deadly weapon domestic violence; willful or wanton disregard of safety of persons resulting in death; and child abuse, neglect or endangerment.
A homeless man has been arrested and charged over a plot to bomb the New York Stock Exchange.
The 30-year-old man from Florida, Harun Abdul-Malik Yener, was arrested on Wednesday and charged with attempting to use an explosive device to damage or destroy a building used in interstate commerce, having unveiled some of his plans to undercover agents, according to the FBI.
They began investigating Yener in February based on a tip that he was holding “bomb-making schematics” in a storage unit.
Bomb-making sketches, many watches with timers, electronic circuit boards and other electronics that could be used for building explosive devices were found, the FBI said.
It also said he told undercover FBI agents that he wanted to detonate the bomb the week before Thanksgiving and that the stock exchange in lower Manhattan would be a popular site to target, and that doing so “will wake people up”.
An agent also allegedly recorded him saying: “I feel like Bin Laden.”
He described how he hoped the bomb would “reboot” the US government, explaining that it would be “like a small nuke went off,” killing everyone inside the building, according to court documents.
The documents also claim he had rewired two-way radios so that they could work as remote triggers for an explosive device and planned to wear a disguise when planting the explosives.
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Yener, who had also searched online for things related to bomb-making since 2017, was sacked from his job at a restaurant in Florida last year after his former supervisor said he threatened to “go Parkland shooter in this place”, the FBI added.
He had his first court appearance Wednesday afternoon and will be detained while he awaits a trial.
Court papers filed on Wednesday expand on an earlier outline for what prosecutors argued would dilute that monopoly.
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Google called the proposals radical at the time, saying they would harm US consumers and businesses and shake American competitiveness in AI.
The company has said it will appeal.
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The US Department of Justice (DoJ) and a coalition of states want US District Judge Amit Mehta to end exclusive agreements in which Google pays billions of dollars annually to Apple and other device vendors to be the default search engine on their tablets and smartphones.
Google will have a chance to present its own proposals in December.
A trial on the proposals has been set for April, however President-elect Donald Trump and the DoJ’s next antitrust head could step in.