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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

At least eight members of the same family were among the 26 people killed Sunday when a man armed with a rifle burst into the sanctuary of a church in Texas and started firing.The mass shooting left about 20 others wounded at the First Baptist Church in Sutherland Springs, about 30 miles east of San Antonio.The massacre killed about 4% of the small town's population. And no one at the church was left unscathed, Wilson County Sheriff Joe Tackitt said."I think nearly everyone had some type of injury," the sheriff told reporters Monday.Texas Gov. Greg Abbott called the slaughter "the largest mass shooting" in the state's history. But it's still unclear what motivated the killer.Latest developments-- The killer had in-laws who attended the church, but they were not present at the time of the massacre, the sheriff said.-- The shooter was first shot by an armed resident who confronted the gunman outside the church. The suspect then turned the gun on himself, authorities said. He was dressed in all-black tactical gear, including a ballistic vest, and was later found dead in his vehicle.-- The victims ranged in age from 5 to 72 years old, said Freeman Martin, a regional director with the Texas Department of Public Safety. The visiting pastor was among those killed, Tackitt said.-- The 14-year-old daughter of the church's regular pastor was among those killed, said Sherri Pomeroy, the girl's mother. Her parents were traveling out of state when the shooting occurred.-- At least eight of the people killed were members of one family, according to a relative and a community leader. Those relatives span three generations and include a woman who was about five months pregnant and three of her children.-- A witness told CNN affiliate KSAT that he and the armed resident pursued the gunman in a car chase for about 11 miles.-- Speaking from Japan, President Donald Trump expressed condolences for the victims during a Monday news conference and said he believes the shooting was caused by a "mental health problem," not an issue with US gun laws.Who was the shooter?The gunman has been identified as 26-year-old Devin Patrick Kelley, according to two law enforcement sources who have been briefed on the investigation.But police have not officially named Kelley as the shooter. They described the gunman as a white man in his 20s. Authorities have not said what the motive was.Kelley was a member of the US Air Force and served at Holloman Air Force Base in New Mexico from 2010 until his discharge, according to Air Force spokeswoman Ann Stefanek.He was court-martialed in 2012 for assault on his spouse and assault on their child, according to Stefanek. He served a year in confinement, received a bad conduct discharge and had his rank reduced, she said.In April 2016, Kelley purchased the Ruger AR-556 rifle he allegedly used in the shooting from a store in San Antonio, Texas, a law enforcement official said. There was no disqualifying information in the background check conducted as required for the purchase, a law enforcement official told CNN.At one point, the shooter tried to get a license to carry a gun in Texas but was denied by the state, Abbott said, citing the director of Texas' Department of Public Safety."So how was it that he was able to get a gun? By all the facts that we seem to know, he was not supposed to have access to a gun," Abbott said. "So how did this happen?"How the attack unfoldedThe gunman was first spotted at a Valero gas station across the street from the church at about 11:20 a.m. (12:20 p.m. ET).He drove across the street, got out and began firing even before he entered the church, Martin said.David Flores told CNN that his father saw the shooter."My dad saw the gunman run into the church building and then he heard shots and saw people running," Flores told CNN. "People covered in blood and screaming. It was pandemonium everywhere."As the shooter left the church, a local resident used his own rifle to engage him, Martin said. The gunman dropped his weapon and fled.Johnnie Langendorff said he was driving to his girlfriend's house when he saw the shootout between the shooter and the armed resident.The gunman took off in a Ford Explorer, Langendorff told CNN affiliate KSAT.The resident "briefed me quickly on what had just happened and said we had to get him, and so that's what I did," Langendorff said.They gave chase in his truck and called police. As they sped after him, Langendorff said, the shooter "eventually lost control on his own and went off into the ditch" in neighboring Guadalupe County."The gentleman that was with me got out and rested his rifle on my hood and kept it aimed at him [shooter], telling him to get out. There was no movement, there was none of that. I just know his brake lights were going on and off, so he might've been unconscious from the crash or something like that. I'm not sure."Law enforcement later found the suspect dead of a gunshot wound inside his vehicle.A law enforcement official briefed on the investigation said multiple weapons were found in the shooter's car. The FBI and the Bureau of Alcohol, Tobacco, Firearms and Explosives are involved in the investigation.The victims and griefHours after the shooting, residents of Sutherland Springs hugged one another, held candles and sang hymns in a vigil Sunday night. Abbott attended the event, in which faith leaders offered words of solace and prayers.Sutherland Springs is the kind of place where "everybody knows everybody," said Gloria Rodriguez Ximenez, who attended the vigil."This is a small, Christian town, a very small community," she said. "Everybody's united. Everybody's so close to everybody."She knows the First Baptist Church's pastor and his family, including their daughter who died."I can feel the pain everybody's going through. There's so much hurt for a small town," Ximenez said.Others echoed the feeling of shock and heartache."My heart is broken," Wilson County Commissioner Albert Gamez Jr. told CNN. "We never think where it can happen, and it does happen. It doesn't matter where you're at. In a small community, real quiet and everything, and look at this."Twenty-three people died inside the church, which has a small sanctuary with wooden pews and red carpeting. Two died outside the church, and one at the hospital.The wounded are being treated at three hospitals including the Connally Memorial Medical Center in Floresville, University Hospital and Brooke Army Medical Center in San Antonio.The-CNN-Wire 6515

As the pictures come in from along the Florida panhandle, especially from devastated Panama City and Mexico Beach, many of us are feeling a need to help those who lost their homes. Should you give cash, donate cleaning supplies or collect canned goods?Giving is good. But giving to a good charity — one that knows how to get the help to victims quickly — is even better.The Better Business Bureau and Charity Navigator are offering advice on how to donate and sharing which groups are best prepared to distribute your donation.Despite all the new high tech ways to donate, from crowdsourcing to charity apps, an oldie might be your best bet at first. 663

At a rally in Pittsburgh on Tuesday, President Donald Trump gloated about reporters who were injured and shoved to the ground while covering protests and riots earlier this summer.While sharing anecdotes about the unrest in Minneapolis following the death of George Floyd, Trump referred to an "idiot reporter from CNN with the shaved head" who "got hit on the knee with a canister of tear gas."Trump was likely referring to MSNBC anchor Ali Velshi, who was hit with a rubber bullet fired by the National Guard while covering the protests in Minneapolis.Later referred to an unidentified reporter who was thrown aside "like a bag of popcorn" as police attempted to clear out protesters.Both accounts garnered laughter and applause from the large crowd in attendance."When you see it, it's actually a beautiful sight. It's a beautiful sight," Trump said, referring to police clearing out protesters.It was the second time in less than a week that Trump has mocked Velshi's injury. On Friday, at a rally in Minnesota Trump called out Velshi by name, saying that his injury was "a beautiful thing" and the result of "law and order." 1137

At least two sheriff's offices in Florida are investigating after voters in the state say they received threatening messages from people claiming to be affiliated with the Proud Boys that attempt to scare voters into voting for President Donald Trump.According to Florida Today, the emails sent to voters followed a similar format: The sender claimed to be in possession of personal information because they "gained access" to the "entire voting infrastructure." The message then says the voter must "vote for Trump on Election Day or we will come after you."Florida Today reports that the Brevard Supervisor of Elections has reported the messages to local law enforcement. In a Facebook post, the sheriff of Alachua County, located several hours northwest of Brevard County, said it was investigating similar messages with assistance from federal law enforcement. 872