00:00El telescopio espacial Nancy Grace Roman, antes W. First, lleva el nombre de la científica que impulsó el Hubble
00:08y transformará nuestra visión del cosmos. Con un campo de visión 100 veces mayor que el del Hubble,
00:15podrá explorar enormes regiones del cielo para buscar miles de exoplanetas y estudiar la energía oscura.
00:22Una nueva era de observación astronómica está por comenzar.
00:30El telescopio es la mejora de ambos mundos.
00:54W. First is the Wide Field Infrared Survey Telescope.
00:57What I think of W. First is doing is building on what were the two great successes astronomically of the 1990s in the last decade.
01:05That is the Sloan Digital Sky Survey and the Hubble Space Telescope.
01:09W. First is a NASA observatory that has the top ranking of the National Academy of Sciences to launch in the 2020s.
01:17It has the same image precision and power as the Hubble Space Telescope,
01:21but with 100 times the area of sky that it views.
01:25Looking at a large fraction of the sky allows you to get a more complete accounting.
01:29For example, the stars in the Large Magellanic Cloud, which is the nearest galaxy to us,
01:33or the stars in the galactic bulge.
01:35So you can do a much more complete accounting in a much shorter amount of time.
01:39The particular thing I'm interested in using W. First for is to actually do a statistical census of planetary systems in our galaxy.
01:48And what we're looking for is gravitational microlensing events.
01:51These are cases when another star passes in front of our line of sight to a background star,
01:56and it makes that background star get a little bit brighter due to the gravity of that foreground star.
02:00And that allows us to find planets.
02:03What W. First will do is we'll have what we call a coronagraph.
02:06A coronagraph lets us image and characterize really dim planets next to very bright stars.
02:13No matter how good a telescope that you build, it's always going to have some residual errors.
02:19This is going to be the first time that we're going to fly an instrument that contains these high-format deformable mirrors.
02:24They're going to let us correct the errors in the telescope that's never been done in space before.
02:29W. First will allow us to potentially make groundbreaking discoveries, finding out what dark energy is.
02:37So this will tell us if dark energy is an unknown form of energy or if it's a modification of general relativity.
02:46Single W. First images will contain over a million galaxies, and we can't categorize and catalog those galaxies ourselves.
02:54Citizen science allows interested people in the general public to solve scientific problems.
03:01And so one of the things that I'm really excited about is enabling this bridge where the general public can get involved in doing actual science.
03:09For me, it's a really exciting opportunity to play a significant role in a mission that I think will be one of the most powerful telescopes that we have in the 2020s.
03:20And will be some of the most important things our country does in space in that time frame.
03:25Thank you.
03:30Gracias por ver el video.
