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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

As some companies consider making work-from-home permanent, others see the value in creating a workplace for employees. "We've always been flexible in our workplace, we've always allowed people to work from home if they want, and what we learned is that people do want a place that is their own that we can come into," said Reid Carr, CEO of the marketing agency Red Door Interactive. After years of leasing an office in downtown San Diego, the company wanted to create its own space, designed to foster collaboration and growth."We were excited when we found it, we had a vision for how this whole process was going to go down," said Carr. The company purchased nearly half an acre of property to create a campus-style workplace. But after the pandemic hit, they overhauled the design to ensure it was a space employees not only wanted to go to but could feel safe in.The new campus will incorporate touchless features throughout the buildings, like doors and water bottle filling stations. They're creating outdoor meeting spaces with heaters and shades so that they can be used year-round. And inside, they're investing in the best available HVAC systems for air filtration."I'm learning at all this stuff as we go, but we're looking at hospital grade stuff. The perspective we took is there's always going to be flus and colds, so why not do these things that will help keep people from spreading disease," said Carr. In addition to having their own socially distanced desks, employees will have designated areas separate from visitors, including the kitchen. One building will be the epicenter of conference rooms so they can be easily cleaned more frequently."Certain things never change. You want to feel like you belong to something, you want to connect with people," said Carr. The company plans to break ground on its new campus in early September, with plans to complete the project in April 2021. 1916

ATLANTA (AP) — Atlanta police have accused a suspect of felony murder and aggravated assault in a shooting that killed an 8-year-old girl near the site of an earlier police shooting.Police said Wednesday that they issued warrants a day earlier for 19-year-old Julian Conley in the slaying of Secoriea Turner. Conley's attorney, Jackie Patterson, said Conley turned himself in Wednesday. Patterson says Conley was peacefully protesting and witnessed the shooting but did not open fire himself. Secoriea was fatally shot on the Fourth of July while riding in an SUV with her mother and another adult near the Wendy's restaurant where Rayshard Brooks, a 27-year-old Black man, was killed by a white police officer on June 12. 730

At least 2.4 million more Americans were impacted by an Equifax data breach that happened last year, though those customers had less data stolen.The Associated Press reported the newly announced customers had only their names and a partial driver's license number stolen. The original data breach involved 145.5 million Americans who had their Social Security numbers impacted.In the driver's license theft, the attackers were unable to get the state where the license was issued and the dates of issuance and expiration. 529

Attorneys for Noor Salman are calling for a dismissal of charges or a mistrial after they say new details from prosecutors reveal that Pulse gunman Omar Mateen's father was an FBI informant who is currently under a criminal investigation.According to a motion filed by the defense, Assistant US Attorney Sara Sweeney sent an email on Saturday to the defense -- in the middle of Salman's trial -- that stated Seddique Mateen was a confidential FBI source from 2005 through June 2016.The email also stated that Seddique Mateen is being investigated for money transfers to Turkey and Pakistan after documents were found in his home on the day of the Pulse attack. 668