A new study has revealed that certain sea stars rival polar bears as the most prolific predators in coastal Arctic ecosystems.
New time-lapse images of the beautiful Butterfly Nebula come closer to explaining its spectacular strangeness.
From perfecting a pull-up to easing back pain, here's what experts say about the benefits of a strong core.
Nearly half of all new UFO cases opened in 2022 cannot be explained, Pentagon officials wrote.