This video details a system of seven planets orbiting TRAPPIST-1, a discovery of the Spitzer Space Telescope, operated by NASA's Jet Propulsion Laboratory in Pasadena, California. TRAPPIST-1 is an ultra-cool dwarf star. Over 21 days, Spitzer measured the drop in light as each planet passed in front of the star. Spitzer was able to identify a total of seven rocky worlds, including three in the habitable zone where life is possible. The study established the planets' size, distance from their sun and, for some of them, their approximate mass and density. It also established that some, if not all, these planets are tidally locked, meaning one face of the planet permanently faces their sun. For more information about Spitzer & TRAPPIST-1, visit http://www.spitzer.caltech.edu/trappist-1

Seven Earth-sized planets have been observed by NASA's Spitzer Space Telescope around a tiny, nearby, ultra-cool dwarf star called TRAPPIST-1. Three of these planets are firmly in the habitable zone. Over 21 days, NASA's Spitzer Space Telescope measured the drop in light as each planet passed in front of the star. Spitzer was able to identify a total of seven rocky worlds, including three in the habitable zone, where liquid water might be found. The video features interviews with Sean Carey, manager of the Spitzer Science Center, Caltech/IPAC; Nikole Lewis, James Webb Space Telescope project scientist, Space Telescope Science Institute; and Michaël Gillon, principal investigator, TRAPPIST, University of Liege, Belgium. The system has been revealed through observations from NASA's Spitzer Space Telescope and the ground-based TRAPPIST (TRAnsiting Planets and PlanetesImals Small Telescope) telescope, as well as other ground-based observatories. The system was named for the TRAPPIST telescope. NASA's Jet Propulsion Laboratory, Pasadena, California, manages the Spitzer Space Telescope mission for NASA's Science Mission Directorate, Washington. Science operations are conducted at the Spitzer Science Center at Caltech in Pasadena. Spacecraft operations are based at Lockheed Martin Space Systems Company, Littleton, Colorado. Data are archived at the Infrared Science Archive housed at Caltech/IPAC. Caltech manages JPL for NASA. For more information about Spitzer, visit http://www.nasa.gov/spitzer and http://spitzer.caltech.edu. Image Credit: NASA/JPL-Caltech

On May 4th, 2016, the Hubble Space Telescope made the first spectroscopic measurements of two of the three known Earth-sized exoplanets in the TRAPPIST-1 system just 40 light-years away. Music credit: "Feels Good" by Louise Dowd and Stephen William Cornish, Atmosphere Music Ltd, Killer Tracks Production Music If you like this video, subscribe to the NASA Goddard YouTube channel: https://www.youtube.com/goddardtv Credit: NASA's Goddard Space Flight Center/Katrina Jackson Press release: http://www.nasa.gov/press-release/nasa-s-hubble-telescope-makes-first-atmospheric-study-of-earth-sized-exoplanets Science paper: http://arxiv.org/abs/1606.01103 This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at: http://svs.gsfc.nasa.gov/12319 Follow NASA’s Goddard Space Flight Center on: Facebook: https://www.facebook.com/NASA.GSFC Twitter: https://twitter.com/NASAGoddard https://twitter.com/NASAGoddardPix Flickr: https://www.flickr.com/photos/gsfc/ Instagram: https://www.instagram.com/nasagoddard/ Google+: https://plus.google.com/+NASAGoddard/posts

The exoplanet HD80606 b spends most of its time far from its star, but every 111 days it swings in feverishly close. NASA's Spitzer Space Telescope measured the planet's extreme temperature swings using infrared light. This allowed astronomers to simulate its atmosphere. For more information about Spitzer, visit http://www.nasa.gov/spitzer Visuals credit: NASA/JPL-Caltech/MIT/Principia College

This animation shows one possible scenario for the rocky exoplanet 55 Cancri e, nearly two times the size of Earth. New Spitzer data show that one side of the planet is much hotter than the other – which could be explained by a possible presence of lava pools. Credit: NASA/JPL-Caltech

Astronomers using telescopes at ESO's observatories in Chile have discovered three planets around a dim dwarf star just 40 light-years from Earth. These worlds have sizes and temperatures similar to those of Venus and the Earth, and they are the best targets so far found in the hunt for life elsewhere in the Universe. More information and download options: http://www.eso.org/public/videos/eso1615a/ Subscribe to ESOcast in iTunes! https://itunes.apple.com/podcast/esocast-hd/id295471183?mt=2 Receive future episodes on YouTube by pressing the Subscribe button above or follow us on Vimeo: https://vimeo.com/esoastronomy Watch more ESOcast episodes: http://www.eso.org/public/videos/archive/category/esocast/ Find out how to view and contribute subtitles for the ESOcast in multiple languages, or translate this video on dotSUB: http://www.eso.org/public/outreach/partnerships/translators/ Credit: ESO. Editing: Herbert Zodet.  Web and technical support: Mathias André and Raquel Yumi Shida.  Written by: Peter Grimley and Richard Hook. Narration: Sara Mendes da Costa.  Music: tonelabs (tonelabs.com).   Footage and photos: ESO, L. Calçada, M. Kornmesser, ALMA (ESO/NAOJ/NRAO), NASA, ESA/ Hubble, F. Pont (Exeter University, UK), A. Lecavelier des Etangs (IAP/CNRS/UPMC, France), Alexandre Santerne (Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto) /Planetário do Porto - Centro Ciência Viva, Gianluca Lombardi (glphoto.it), B. Tafreshi (twanight.org), Theofanis Matsopoulos, NASA Goddard Space Flight Center Conceptual Image Lab, Chris Meaney (HTSI): Lead Animator and Nick Risinger (skysurvey.org). Directed by: Herbert Zodet.  Executive producer: Lars Lindberg Christensen.