The cloud, named Eos, is chock-full of molecular hydrogen and possibly rife with star-forming potential in the future.
Panama’s location between two continents and two oceans explains why it’s a geopolitical hot spot, and why it has so many stunning birds.
Animal testing remains a fundamental part of biomedical research. But as funding evaporates, mice, rats and even monkeys may be euthanized.
The Trump administration told researchers it was “releasing” them from their roles. It puts the future of the assessment, which is required by Congress, in doubt.
A new proposal to combat PFAS contamination, announced by the Environmental Protection Agency, left critical questions unanswered.
As the artist in residence at the Penn Center for Neuroaesthetics, Judith Schaechter created a giant dome to spark joy. It’s now on view outside Philadelphia.