These databases are compiled and maintained by Sen Corporation Limited (Sen) and are copyright © Sen Corporation Limited, all rights reserved.
We have applied the 100 km Kármán Line as the international definition of space. Flights above 80 km (the U.S. definition of space) but below 100 km are excluded.
We acknowledge and thank NASA Exoplanets Archive for providing data on confirmed planets. The Earth like rating is based on three criteria: size, composition and habitable zone.
We thank Dr Meg Schwamb and Kimberly Cartier for their help in compiling our exoplanet database. The database is currently maintained weekly by Kimberly Cartier.
We believe our data is accurate and we continuously maintain it. If you discover an error or have a suggestion please contact us at info at sen.com.