Posts filed under ‘The Planet Factory’

The Planet Factory


Exoplanets and the Search for a Second Earth

by Elizabeth Tasker

How weird are worlds around other stars?
Weird.
Really weird.

Super-sized Jupiters orbit their stars closer than Mercury, while Earth-sized worlds have years lasting mere hours and crusts of molten magma. Other planets are on bent orbits where the seasons change the weather by a 1000 degrees, while around a neighbouring star circle split worlds with hemispheres of everlasting day and perpetual, neverending night.

There are planets that orbit twin suns like Luke Skywalker’s Tatooine and other worlds that have no sun at all but are rogue drifters in the darkness of the Galaxy. Some drown under global oceans thousands of kilometers deep and others have the surfaces of giant comets or diamond mantles with tarry seas.

These are the cousins of our own Solar System, but could any be like our own Earth?

(more…)

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December 17, 2017 at 8:25 pm Leave a comment


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