Why Landing on Mars Is So Difficult

NASA's Perseverance rover is entering the most intense phase of its mission: landing on the red planet. » Subscribe to Seeker! http://bit.ly/subscribeseeker » Watch more Countdown to Launch: http://bit.ly/CTLplaylist » Visit our shop at http://shop.seeker.com The United Arab Emirates’ Hope orbiter and China’s Tianwen-1 mission have already arrived at Mars’ orbit. And it’s been seven months since they took off, but for Mars 2020 and Tianwen-1, one of the hardest parts is still yet to come: actually sticking the landing on the red planet. Fondly known as seven minutes of terror. It takes about seven minutes from the time that the spacecraft first comes in contact with Mars' atmosphere until we get down to the ground. This part of the mission is known as the Entry, Descent, and Landing or EDL. And it all starts with the spacecraft hurtling through the martian atmosphere at roughly 20,000 kilometers per hour, causing the external heat shield to heat up to around 1,300 degrees celsius. With some help from its heat shield, the vehicle slows down to about 1,600 kilometers per hour, and this is when its supersonic parachute deploys. The heat shield then pops off, but the parachute doesn't slow the rover down enough for a safe landing. The main reason for this is because of Mars’ thin atmosphere. #NASA #space #UAE #mars #marsrover #seeker #science #countdowntolaunch Read more: Entry, Descent, and Landing https://mars.nasa.gov/mars2020/timeline/landing/entry-descent-landing/ "Entry, Descent, and Landing – often referred to as "EDL" – is the shortest and most intense phase of the Mars 2020 mission." Mars 2020 Perseverance Launch Press Kit https://www.jpl.nasa.gov/news/press_kits/mars_2020/download/mars_2020_launch_press_kit.pdf "NASA’s next mission to Mars — the Mars 2020 Perseverance mission — is targeted to launch from Cape Canaveral Air Force Station no earlier than July 20, 2020." February’s Gonna Be a Big Month for Mars https://www.wired.com/story/februarys-gonn