planetary

The findings may significantly impact the way scientists approach planetary exploration, particularly for upcoming missions aimed at studying the habitability of Mars.

"As we encroach on planetary boundaries, the number of organisms an ecosystem can support is reduced," says Prof Townend.

"This is just a new way to look at it, towards planetary health."

The ancient Persian paisley motif has long been a symbol for strength and fertility, and a brushed Zen circle filling one panel represents inner peace while doubling as a planetary emblem.

"The only way to get to that vision is with giant space stations. The planetary surfaces are just way too small."