Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define ...

Learn why food can contain both good and bad bacteria. Here’s the difference, and how to avoid the bad ones.

Learn how the fossils of ancient organisms help scientists navigate deep time — and uncover Earth’s hidden history.

Learn how tardigrades are able to tolerate extreme radiation with a unique protein that unwinds their DNA.

Learn how super recognizers don’t memorize extra details but instinctively focus on the most telling facial features, a skill ...

Learn how three new toad species from Tanzania’s Eastern Arc Mountains evolved to skip the tadpole stage — revealing one of nature’s rarest reproductive strategies.

Learn how early hominins crafted the same sharp-edged Oldowan tools through 300,000 years of climate change, revealing one of ...

Learn more about the “Marree Man,” a gigantic geoglyph carved into the Australian outback whose creator still remains a ...

Learn about the closest black hole from Earth, Gaia BH1. This recently discovered black hole is dormant, but it’s only 1,600 ...

Learn more about the discovery of the electron and why J.J. Thomson often gets the credit.

Learn more about bowhead whales and how they routinely see out their 200th birthday — and this DNA-repair protein might just ...

Prehistoric trees like Ginkgo and monkey-puzzles still have close relatives that go back at least to the time of the dinosaurs.