July 3, 2026 Scientists at UCLA discovered a surprising reason aging muscles heal more slowly. In older muscle stem cells, a protein called NDRG1 builds up and acts like a brake, slowing the cells’ ...

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Scientists Discover Hidden Chemical Signature That Could Reveal Alien Life May 12, 2026 Scientists may have found a powerful new way to hunt for alien life — not by searching for specific molecules, ...

The returned samples from asteroids Bennu and Ryugu document a remarkably rich organic inventory, spanning from smaller molecules to complex macromolecular materials. This chemical diversity renews ...

The Tribune is taking a look back at what the Chicago area and the state ...