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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 of Tuesday, Petco says they no longer sell electronic "shock" collars and have removed them from its shelves and website.The company said they stopped selling the human- and bark-activated electronic pet collars in a press release on Tuesday because they wanted to strengthen their commitment to positive reinforcement training methods. They also wanted to solidify their evolution from "a leading pet specialty retailer to a category-defining health and wellness partner" for animals and their owners."Electricity may be critical to powering your microwave, but it has no role for the average pet parent training their dog," said Petco CEO Ron Coughlin in the press release. "Shock collars have been shown to increase fear, anxiety, and stress in dogs, and we believe there's a better way – Positive Reinforcement Training."The San Diego-based company is also calling on the pet industry and consumers to join in its newly launched "Stop the Shock" online campaign that will create "responsible regulation for the retail sale of shock collars to general consumers."Along with today's announcement, Petco also launched a new look declaring itself "Petco, The Health + Wellness Co." to reflect how they've evolved into a health and wellness company."As a health and wellness company, our mission is focused on improving pet lives, and we think selling shock collars does the opposite," Coughlin said in the news release. "It's our responsibility to ensure that we, and others, aren't putting potentially harmful products in the wrong hands." 1551

AVENAL, Calif. (AP) — Authorities say an inmate at a central California prison died of complications from the coronavirus Saturday, becoming the state’s 79th person to have a fatal case of COVID-19 while they were incarcerated. The Avenal State Prison inmate died at a hospital. The prisoner’s name was not released. There have been 15,872 confirmed cases of the coronavirus in the state prison system. Advocates say jails and prisons nationwide are prime locations for the virus to spread between inmates and staff. Officials have released hundreds of inmates to decrease jail and prison populations across the country during the pandemic. 648

BAKERSFIELD, Calif. — U.S. Customs and Border Protection officers executed the second largest methamphetamine bust recently along the southwest borders in CBP's history, according to the U.S. Drug Enforcement Administration.A press release states that a driver of a tractor-trailer with a "shipment that was manifested as medical supplies," pulled up to the Otay Mesa cargo border in San Diego Friday morning. An agent there at the time decided to pull the truck over for a more thorough inspection. Imagining systems, similar to an x-ray, were used to investigate the trailer and revealed suspicious components in the back of the trailer.Officers offloaded more than 1,800 packages mixed with medical supplies. That's when they discovered more than 3,100 pounds of methamphetamine, 64 pounds of heroin, 29 pounds of fentanyl powder, and almost 37 pounds of fentanyl pills. The narcotics are estimated to have a street value of .2 million, according to the press release.“This massive seizure is a testament of what law enforcement agencies can do when we combine forces – prevent over million worth of deadly drugs from entering our country; thus saving countless lives from addiction and overdose deaths,” said DEA Special Agent in Charge John W. Callery. 1271

Attorney General Jeff Sessions revealed Thursday that Utah's top federal prosecutor, John Huber, has been examining a cluster of Republican-driven accusations against the FBI and has decided that no second special counsel is needed -- at least for now.Huber has been looking into allegations that the FBI abused its powers in surveilling a former Trump campaign adviser, and more should have been done to investigate Hillary Clinton's ties to a Russian nuclear energy agency, but his identity had remained a secret.But Sessions' decision to stop short of formally appointing a special counsel like Robert Mueller, detailed in a lengthy written response to threeRepublican chairmen on Capitol Hill, will likely anger those in the GOP who have recently ramped up calls to investigate claims of political bias at the nation's top law enforcement agencies.It also comes one day after the Justice Department's internal watchdog office confirmed?it would review how the FBI obtained a warrant to monitor Trump foreign policy aide Carter Page, as well as the bureau's relationship with Christopher Steele, the author of the Trump dossier.Huber, who currently serves as the US attorney in Utah, may now find himself thrust into the middle of a fierce partisan struggle -- with Republicans arguing anything short of a special counsel is insufficient because the Justice Department cannot investigate its own people, and Democrats maintaining that any allegations of bias are an unfounded ploy to distract from Mueller's investigation into possible coordination between Trump campaign associates and Russian officials.Originally appointed by President Barack Obama in 2015, Huber, along with many other US attorneys, resigned after President Donald Trump took office early last year, but was reappointed by Trump shortly thereafter. 1845