A humungous shark that lived 115 million years ago surpassed the size of modern-day great whites, paleontologists discovered

Sleep is often the first thing that many people associate with rest, but humans also require restorative downtime when awake

Immense progress in gene editing, drug discovery and conservation are just some of the reasons to be cheerful about 2025

SpaceX is mulling an IPO in 2026. Here’s how that could affect its work with NASA and the push to put humans on Mars

Record-breaking objects can tell us about the most powerful events in the cosmos—sometimes

From an interview with author Mary Roach to a chat with cardiologist Eric Topol, here are 12 of the most eye-opening conversations we had this year

Dynamic mounds made of methane at a depth of some 3,640 meters act like “frozen reefs” for a bizarre array of deep-sea creatures, new observati...

From the first sighting of a colossal squid in the wild to a seriously goofy octopus, 2025 delivered some astounding photos from the ocean’s depths

The Euclid Space Telescope is decking the halls with boughs of starlight

On TikTok and other short-form video platforms, Scientific American explored the underground labs of Greenland, brand-new colors and the perfect wa...