© NASA/JPL

Exoplanets, i.e. planets that orbit stars beyond our solar system, play a special role in the search for extraterrestrial life. So far, a little more than 4,000 exoplanets are known, however, none has been habitable for human or human-like life. About 96 percent of these exoplanets are significantly larger than Earth and are more of the size of gas giants like Neptune or Jupiter. Still, scientists assume that this percentage does not reflect the real conditions in space, since large planets are much easier to detect than small ones.

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About the author

Author profile picture Petra Wiesmayer is a journalist and author who has conducted countless interviews with high-profile individuals and researched and written general entertainment, motorsports, and science articles for international publications. She is fascinated by technology that could shape the future of mankind and enjoys reading and writing about it.As an avid science fiction fan she is fascinated by technology that could shape the future of mankind and enjoys reading and writing about it.