NASA | The Quest for Other Worlds Like Earth [HD]
Δημοσιεύθηκε στις 19 Φεβ 2013
The centuries-old quest for other
worlds like our Earth has been rejuvenated by the intense excitement
surrounding the discovery of hundreds of planets orbiting other stars.
The challenge now is to find terrestrial planets, especially those in
the habitable zone of their stars where liquid water might exist on the
surface of the planet. The Kepler mission, which launched in March 2009,
is specifically designed to survey our region of the Milky Way galaxy
to discover Earth-size and smaller planets in or near the habitable zone
and determine the fraction of the hundreds of billions of stars in our
galaxy that might have such planets. To date, 61 Kepler planets have
been confirmed and more than 2,300 planet candidates have been found.
This talk will cover many of Kepler's discoveries, including several
planets orbiting two stars, and will try to explain how Kepler's
discoveries help define humanity's place in the universe.
Speaker: Dr. Thomas Gautier, JPL
Release Date: 10 May 2012
Credit: NASA Jet Propulsion Laboratory (JPL)
worlds like our Earth has been rejuvenated by the intense excitement
surrounding the discovery of hundreds of planets orbiting other stars.
The challenge now is to find terrestrial planets, especially those in
the habitable zone of their stars where liquid water might exist on the
surface of the planet. The Kepler mission, which launched in March 2009,
is specifically designed to survey our region of the Milky Way galaxy
to discover Earth-size and smaller planets in or near the habitable zone
and determine the fraction of the hundreds of billions of stars in our
galaxy that might have such planets. To date, 61 Kepler planets have
been confirmed and more than 2,300 planet candidates have been found.
This talk will cover many of Kepler's discoveries, including several
planets orbiting two stars, and will try to explain how Kepler's
discoveries help define humanity's place in the universe.
Speaker: Dr. Thomas Gautier, JPL
Release Date: 10 May 2012
Credit: NASA Jet Propulsion Laboratory (JPL)
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