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450
Are their other worlds like our own?
In 450 BC Greek Philosophers questioned the existance of other worlds. -
Understanding the Milky Way
Edwin hubble, using the Hooker Telescope in California, observed and proved that the Milky Way consists of groups of stars and other solarsystems, forever changing our view of the universe. -
Star Trek!
The Debut of the famous televison series Star Trek. This creates alot of intrest and stimulates the study of other inhabiated world like our own. -
Detection
The first published discovery to receive subsequent confirmation was made in 1988 by the Canadian astronomers Bruce Campbell, G. A. H. Walker, and Stephenson Yang they were cautious about claiming a planetary detection, radial-velocity observations suggested that a planet orbits the star Gamma Cephei -
Hubble Launch!
The Hubble Telescope satalite is launched into space. This critical launch has aided the research and discovery of hundereds of exoplanets and has provided some of the very first pictures -
Discovery
The first confirmed detection came in 1992, with the discovery of several terrestrial-mass planets orbiting the pulsar PSR B1257+12 -
First exoplanets found orbiting star
The first detection of an exoplanet orbiting a main-sequence star was made in 1995, when a giant planet was found in a four-day orbit around the nearby star 51 Pegasi. -
Habitable Zone for Exoplanets?
In 2001 scientists discover a planet 6 times the size of jupiter orbiting a star inside the "Habitable zone" ( the zone where liquid water can exist!!!) Planet #:HD 28185 b -
Red Giant Star
Astronomers discover a planet orbiting a star 13x larger and 40x brighter then our own. this is the first time in history a planet has been discovered orbiting a giant star Star name: Iota Draconis -
Exoplanets have water!
the Spitzer space telescope, created by NASA detects water vapor in the atmosphere of planet HD 189733 b this is the first finding of water on an exoplanet! -
Earth-like planet discovered
was first observed by the Kepler space telescope, giving it the name Kepler 22b. it is roughly 2.4 times the size of earth. Its surface composition in still unknow but is to be belived as an "ocean like" world. -
organic molecules
the same planet detected with water vapor in 2007 has now been observed and scientists have identified organic molecules on its surface HD 189733b -
extra space
