Kepler Space Observatory | Wikipedia audio article
Channel: Subhajit Sahu
Date: 27/03/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Kepler_space_telescope


00:01:35 1 History
00:06:34 2 Spacecraft design
00:08:08 2.1 Camera
00:10:15 2.2 Primary mirror
00:11:20 2.3 Photometric performance
00:13:28 2.4 Orbit and orientation
00:15:36 2.5 Operations
00:16:48 2.5.1 Communications
00:17:45 2.5.2 Data management
00:20:10 2.5.3 Reaction wheel failures
00:21:22 2.6 Operational timeline
00:24:49 3 Field of view
00:26:38 4 Objectives and methods
00:32:26 5 Planet finding process
00:32:37 5.1 Finding planet candidates
00:34:51 5.2 Confirming planet candidates
00:35:48 5.2.1 Through other detection methods
00:40:03 5.2.2 Through validation
00:43:02 6 Mission results
00:43:49 6.1 2009
00:45:47 6.2 2010
00:48:46 6.3 2011
00:55:33 6.4 2012
00:57:31 6.5 2013
01:00:57 6.6 2014
01:04:03 6.7 2015
01:06:42 6.8 2016
01:07:11 7 Mission status
01:07:52 7.1 Extension
01:08:37 7.2 Reaction wheel issues
01:11:50 7.3 Second Light (K2)
01:16:47 8 Data releases
01:17:34 8.1 Follow-ups by others
01:18:22 8.2 Citizen scientist participation
01:21:01 9 Confirmed exoplanets
01:22:27 10 Kepler Input Catalog
01:23:04 11 Solar System observations
01:24:20 12 Retirement
01:25:16 13 See also



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SUMMARY
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Kepler space telescope is a retired space telescope launched by NASA to discover Earth-size planets orbiting other stars. Named after astronomer Johannes Kepler, the spacecraft was launched on March 7, 2009, into an Earth-trailing heliocentric orbit.  The principal investigator was William J. Borucki. After nine years of operation, the telescope's reaction control system fuel was depleted, and NASA announced its retirement on October 30, 2018.Designed to survey a portion of Earth's region of the Milky Way to discover Earth-size exoplanets in or near habitable zones and estimate how many of the billions of stars in the Milky Way have such planets, Kepler's sole scientific instrument is a photometer that continually monitored the brightness of approx 150,000 main sequence stars in a fixed field of view. These data are transmitted to Earth, then analyzed to detect periodic dimming caused by exoplanets that cross in front of their host star. Only planets whose orbits are seen edge-on from Earth can be detected. During its over nine years of service, Kepler observed 530,506 stars and detected 2,662 planets.