Footer 1

Nav Bar

Become a subscriber today to get unlimited access

Member-exclusive 

You've run out of free articles. Read unlimited, ad-free stories (including this one) by becoming a Member. 

Join to continue reading

BACK TO SCHOOL SALE
Save 25% on a year of Nautilus— for everyone who never stopped learning.&nbsp;&nbsp; Our lowest price of the season.

Unlock this story + our newsletter, for FREE! Already a newsletter subscriber? Just click the "Log in" link above. 

Register to continue reading.

Nautilus

Sean Raymond is an American astrophysicist working at the <a href="https://astrophy.u-bordeaux.fr/?lang=en">Bordeaux Astrophysical Laboratory</a> in France. He also writes a blog at the interface of science and fiction (<a href="https://planetplanet.net/">planetplanet.net</a>) and published a <a href="https://www.amazon.com/dp/B08LFZZWGZ">book of astronomy poems</a>.

Sean Raymond

Astronomy

I Built a Stable Planetary System with 416 Planets in the Habitable Zone

trappist 1