This awful computer graphic shows the incredible variety of over 500 exoplanets that have been discovered between 1988 and October 2015 - although there is somecontentionsurrounding the first exoplanet discovery .
The poster , attractively crafted by Slovakian graphic artist and writerMartin Vargic , shows around one - quarter of the so far confirm exoplanets , all painstakingly arrange by their temperature and density . The visual image is based on the radius and temperature of the exoplanets , although other factor – such as density , age or stellar metallicity – were also taken into consideration .
From left to right field , the exoplanets increase in temperature , while from bottom to top , the exoplanets increase in density .

All of the know class of exoplanets are play in the graphic , such as super - earth , blistering Jupiters , spicy Neptunes , H2O worlds , gas dwarfs or superdense adamant planets . The visualizations were made as accurately as possible ( in term of their scale and color ) , but their dead on target nature could always turn out to be wrong as we learn about them .
Perhaps what ’s most exciting about exoplanets isthe possible action they harbor life . Provided they ’re in the “ Goldilocks ” zone around their host mavin – which is neither too spicy nor too cold for smooth water on the airfoil – there ’s a fortune that alien life could form , although we have intercourse the habitability of a planet is a bitmore complicatedthan the presence or absence seizure of fluid H2O .
What ’s more softheaded to think about is the possible action that the universe has barely even bulge produce exoplanets . late estimates from NASA and Kepler space telescopes suggest92 % of potentially habitable satellite in the universeare yet to be contain . look like this poster in a trillion years might have to be A LOT bigger .
you’re able to watch out the full , larger imagehere .
Image credit : Martin Vargic