1:16 Hello everybody. So today I will be 1:19 discussing NASA exoplanets. My name is 1:22 Shria Gundam. 1:24 And so a little bit about NASA 1:26 exoplanets is that this method is one of 1:29 the most powerful tools astronomers use 1:32 to find planets beyond our solar system. 1:35 So to start off a little bit about me. 1:38 So um I'm a senior at Tcoy Creek Greek 1:42 High School and I interned for NASA and 1:45 George Mason University. And a part as a 1:48 part of that internship I researched 1:50 exoplanet candidates specifically 1:53 exoplanet candidate test object of 1:55 interest 3798.01. 1:57 So I'm going to tell you a little bit 1:59 about exoplanet research in general and 2:01 a little bit about my research and how 2:03 you can be a part of opportunities like 2:05 that too. 2:07 So to start off the history of exoplanet 2:10 detections first bea began in 1990. 2:15 So a lot of the early methods were like 2:17 radial velocity or direct imaging. And 2:22 so radial velocity was pretty much where 2:25 astronomers just measured how much a 2:27 star like wobbled or moved. And 2:30 obviously at that time um that was the 2:33 only method available but it wasn't 2:35 necessarily the most effective method 2:37 there is. 2:39 So other approaches like direct imaging 2:42 were also attempted but it was 2:44 challenging. As you can see the picture 2:47 right here was an attempt of direct 2:50 imaging. Yet it's really fuzzy and 2:52 blurry because at the time the 2:54 technology wasn't really ready for this. 2:57 And since then, thousands of exoplanets 2:59 have been found and detection methods 3:01 have become much more advanced. 3:05 So this brings us into the NASA test 3:07 mission which test stands for transiting 3:11 exoplanet survey satellite. This was 3:13 launched in 2018 and its mission was to 3:17 scan nearly the entire sky for nearby 3:20 bright stars and look for planets that 3:23 are orbiting them. So TESS is a 3:26 successor to the Kepler mission which 3:28 was NASA's first big planet hunting 3:30 mission. Yet the difference is that test 3:34 the test mission covers a wider field of 3:36 view and is therefore more advanced. 3:41 So the test mission uses the transit 3:44 detection method within their scope to 3:48 identify exoplanets. So to start off, 3:52 the transit detection method works by 3:54 watching for when a plant passes in 3:57