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At least three people in Louisiana have died as a result of Hurricane Laura after trees fell onto their homes.Gov. John Bel Edwards said he’s received a report of the first US fatality from Hurricane Laura in Louisiana, a 14-year-old girl who died when a tree fell on her home. 285

ATLANTA — The United States is going to require airline travelers from Britain to get a negative COVID-19 test first. The Centers for Disease Control and Prevention announced the new policy late Thursday. Airline passengers from the United Kingdom will have to test negative for COVID-19 within three days of their flight. The requirement goes into effect Monday.The U.S. is the latest country to announce travel restrictions because of a new variant of the coronavirus that is spreading in Britain and elsewhere. The new of the virus is more contagious than other strains.The CDC said because of restrictions in place since March, air travel to the U.S. from the U.K. is down by 90%. 692

At 3 p.m. ET on Monday, November 26, a group of researchers will be really sweating. The NASA InSight spacecraft will try to land on Mars.After six months of flight, the lander component of the probe will detach itself from the cruise stage and head into the atmosphere. The lander component initially looks a fair bit like the re-entry capsule used in the 1960s and 1970s for the Apollo moon missions -- sort of conical, with a smooth and flat bottom. That bottom is a crucial heat shield that is designed to protect the probe as it passes through the thin Martian atmosphere.The landing is a devilishly difficult feat. The landing capsule has to batter its way through the atmosphere. It will fly through the Martian air at an initial speed of 12,300 mph, and it must hit the atmosphere at an angle of precisely 12 degrees. Any shallower, and the probe will bounce off into deep space. Any steeper, and the probe will burn itself up in a spectacular and fiery death. The probe will first touch the atmosphere six minutes and 45 seconds before landing. During this phase, it will experience acceleration 12 times that of the Earth's gravity. Were the probe a 150-pound human, during the flaming descent, it would weigh nearly a ton.About 3? minutes after the probe hits the atmosphere, a parachute will deploy, slowing down the probe even more. Fifteen seconds later, explosives will blow the heat shield off, exposing the actual InSight probe hidden inside. Ten seconds after the heat shield falls away, the probe will extend its legs, much like an airplane extends its wheels before touching down.The probe will fall for an additional two minutes attached to the parachute and protected by its conical shell. About 45 seconds before InSight lands, it will drop out of the shell and fall toward the surface. As soon as it leaves the shell, its landing rockets will ignite.The actual InSight probe looks a little bit like the Apollo moon lander, with three legs to support it and a boxy top. The rockets will slow it further and stop any remaining horizontal motion. Then, about 15 seconds before touchdown, the InSight probe will descend at a speed of 8 feet per second, before hopefully touching down gently on the Martian surface.The entire landing sequence will take about seven minutes to occur. A radio signal from Mars to Earth currently takes about eight minutes and seven seconds to get here. So the complete landing process will take place before we find out if it was successful. It will be done automatically, entirely by the probe itself. For the scientists and engineers who designed InSight, this is called "seven minutes of terror."And they are right to be worried. Mars is a graveyard of failed probes. There have been 44 attempts by various national space agencies to land on Mars. Eighteen have been successful. Twenty-three have not. Three have achieved orbit but failed at a landing.So, what does InSight hope to achieve? Well, as it happens, a lot. But it's different than the intrepid Curiosity probe, which NASA landed in 2012. InSight will not move around. Instead, it will stay put and tell us of the interior of Mars.One thing it will do is emit radio waves that we can monitor on Earth. By making careful measurements of how the frequency of the radio waves change, we will be able to measure the degree to which Mars wobbles as it rotates. That will tell us something about the core of the planet, specifically its makeup and information on the degree to which it is molten.InSight will also deploy a seismometer to listen for marsquakes (like earthquakes, but Martian-style) and for impacts of meteors on the planet. Information gleaned from the waves the seismometer detects will tell us more about the planet's interior.The third thing InSight will do is to dig below the planet's surface. Using a jackhammer, the probe will drill down 5 meters (16 feet) into the planet and, basically, it will take the planet's temperature.There are many reasons this is interesting. Taking the temperature at that depth will allow planetary scientists to determine how much heat is escaping from Mars. More broadly, this measurement will allow a clear determination of the temperature of the planet much closer to the core.This information will tell us a lot about how Mars formed, which, in turn, will add to the information of how rocky planets, including our own Earth, typically develop.And if you're more of an explorer kind of person and not so interested in Martian geology, it will also tell us how warm the planet is at modest depths, which will tell us if there is any chance of liquid water on the planet. Perhaps obviously, if the Martian subsurface is warm enough, any buried water will be in liquid form and not ice. Finding liquid water would be the key discovery that would make Martian exploration relatively easy. A relatively recent possible discovery of a buried Martian lake was promising, but the data was not conclusive. Knowing that the ground is warm would be very comforting to possible future explorers.Exploring the solar system is the first step toward exploring the stars. The InSight probe will give us --well -- insight into whether this is something that humanity will achieve in the foreseeable future.And maybe Elon Musk's bet on him getting to Mars will become true. 5329

AUSTIN, Texas (AP) — Austin City Limits has joined the ranks of major music festivals that have been canceled because of the coronavirus. Festival organizers said in a statement Wednesday that scrapping the three-day October event was "the only responsible solution." "Austin City Limits Music Festival will no longer take place in 2020," organizers said in the statement. "We would have loved to put on another memorable show this year, however, with the uncertainty surrounding the current situation in Texas, this decision is the only responsible solution. The health and safety of our fans, artists, partners, staff, and the entire Austin community remain our highest priority."Organizers said they plan to celebrate their 20th anniversary at next year's festival in October.The announcement comes as Texas reported a record daily high of nearly 7,000 new coronavirus cases on Tuesday and Republican Gov. Greg Abbott urges people to stay home. The festival is one of the largest in the country. The Coachella music festival in California and Bonnaroo festival in Tennessee will also not take place this year. 1120

As Republicans on Monday hit the leaders of major cities helmed by Democrats for their handling of the unrest in the US this summer, thousands took to the streets following the shooting of Jacob Blake.Blake was shot seven times by Kenosha, Wisconsin, police officers on Sunday. Video showed Blake walking into a car when he was shot from behind. As many key details from Sunday’s incident are still not confirmed, Kenosha Police announced that two of the officers involved have been placed on leave.The incident prompted further unrest in a number of US cities on Monday, calling for justice. Supporters of the Black Lives Matter movement also are calling for the arrest of the officers involved in Blake’s shooting.Meanwhile, Republicans tried to pin the unrest and protests that turned violent on Democrats during Monday's portion of the Republican National Convention. The unrest ramped up following the death of George Floyd on Memorial Day. While most of the largest US cities are run by Democrats, unrest has also played out in large cities run by Republicans, including Fort Worth and Jacksonville.To illustrate their point, Republicans called on St. Louis attorneys Mark and Patricia McCloskey, who were criminally charged after video shared on social media indicated that the McCloskeys pointed guns at Black Lives Matter protesters in their gated community."Whether it's the defunding of police, ending cash bails so criminals can be released back out on the streets the same day to riot again, or encouraging anarchy and chaos on our streets, it seems as if the Democrats no longer view the government's job as protecting honest citizens from criminals, but rather protecting criminals from honest citizens,” Mark McCloskey said. “Not a single person in the out of control mob you saw at our house was charged with a crime. But you know who was? We were. They actually charged us with felonies for daring to defend our home."The theme continued by other GOP speakers.“Rioters must not be allowed to destroy our cities,” Kimberly Guilfoyle, National Chair, Trump Victory Finance Committee, said.Some speakers during the Republican Convention claimed that Democrats are supportive of defunding the police. While some members of the Black Lives Matter protest have embraced a “defund the police” movement, Democratic president candidate Joe Biden said he does not support defunding the police. 2409