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  • “Exploration is in our nature.” - Carl Sagan
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Universe

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Earth-sized planets of Kepler-20
Comet Lovejoy by Robert McNaught
Pillars of Creation
Extent of human radio broadcasts
Three planets around HR 8799
The microlensing light curve of planet OGLE–2005-BLG-390Lb
A Planetary Transit
The 1.3 meter "Warsaw" telescope at Las Campanas, Chile, used by OGLE
A Distant World
First Image of an Exoplanet?
Fomalhaut b, a directly imaged exoplanet
Jupiter and Io from Pleiades-1B (animation)
A small slice of Andromeda
M51, the Whirlpool Galaxy, from Hubble
First planet discovered orbiting Alpha Centauri B (artist's concept)
Hubble eXtreme Deep Field (XDF)
COROT-7b
Artist's concept of 55 Cancri's fifth-discovered planet
Hot Jupiter with silicate cloud cover
Extrasolar Planet Illustration
Nighttime Sky View of Future Galaxy Merger: 4 Billion Years
The galactic center
MESSENGER's solar system family portrait
Comet Lovejoy over Paranal
The Milky Way over Yosemite Valley

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