Ars Technica

99% of adults over 40 have shoulder abnormalities on an MRI, study finds

Some adults over 40 have shoulder pain, but nearly all have abnormal joints.

17 Feb 2026 7:47 pm

ByteDance backpedals after Seedance 2.0 turned Hollywood icons into AI clip art

Hollywood backlash puts spotlight on ByteDance's sketchy launch of Seedance 2.0.

16 Feb 2026 11:12 pm

A fluid can store solar energy and then release it as heat months later

Sunlight can cause a molecule to change structure, and then release heat later.

16 Feb 2026 11:00 pm

Ancient Mars was warm and wet, not cold and icy

Kaolinite pebbles show evidence of alteration under high rainfall conditions.

16 Feb 2026 1:44 am

Astronomers are filling in the blanks of the Kuiper Belt

Next-generation telescopes are mapping this outer frontier.

14 Feb 2026 5:15 pm