In this gee-whiz science and great outdoors piece, an expert in tree-ring research shares some of the details of what trees can tell us — and whether or not their rings can reveal their age.

If you’ve ever stumbled upon a tree stump you ... allowing a dendrochronologist to count its rings without having to cut it down. This T-shaped device has been used for centuries.

Rings in 'tree stump' crater found on Mars illuminate red planet's past climate. By Katie Hunt, CNN. Updated 9:44 AM ET, Mon January 31, 2022 . Sign up for CNN's Wonder Theory science newsletter.

Tree-mendous! European Space Agency's ExoMars Orbiter captures a stunning photo of a crater on Mars – and it looks just like a tree stump with concentric rings ...

From above, it looks like a giant tree stump, with concentric rings marking its years of age. However, it's not an alien tree stump, but rather an ice-rich impact crater. You may like ...

Rings in ‘tree stump’ crater found on Mars illuminate red planet’s past climate By Katie Hunt, CNN 2 minute read Published 9:44 AM EST, Mon January 31, 2022 ...

Rings in ‘tree stump’ crater found on Mars illuminate red planet’s past climate By Katie Hunt, CNN 2 minute read Published 9:44 AM EST, Mon January 31, 2022 ...