Trappist-1 alien system was not bombarded by space rocks like early earth

Europe

Austria Belgium Bulgaria Croatia Czech Republic Denmark Estonia Finland France Germany Greece Guernsey Hungary Ireland Isle of Man Italy Jersey Latvia Lithuania Luxembourg Malta Netherlands Norway Poland Portugal Romania Slovakia Slovenia Spain Sweden Switzerland Ukraine United Kingdom

Asia

China Cyprus Hong Kong Indonesia Japan Philippines Saudi Arabia Singapore Thailand

Oceania

Australia New Zealand

Americas

Canada United States

Africa

South Africa

All About Space Magazine