Shadows are a natural consequence of opaque walls in an illuminated Universe. Light shines; photons travel until they hit an ...

Along with fossils of roots, pollen, and spores, the amber provides some of the best evidence yet that a mid-Cretaceous, ...

Filmmakers love New Zealand. Its landscapes evoke other worlds, which explains why so much of The Lord of the Rings was ...

Residents of India's capital New Delhi choked in a blanketing toxic smog Wednesday as worsening air pollution surged past 50 ...

The tree of life is often more like a vine that snakes back on itself, with tendrils briefly embracing before they reach for ...

Analysis of human brain tissue revealed differences in how immune cells behave in brains with Alzheimer's disease compared to ...

Among the laundry list of health problems COVID inflicted on the world's population, one of the more perplexing was an ...

Sunspots captured astronomers' interest, and with the expanding availability and quality of telescopes, were closely tracked until 1645. Despite huge interest in them, astronomers could find no ...

Almost half of all warm-water species of coral are threatened with extinction – and climate change is the chief culprit, a new report said on Wednesday.

A radical stem cell transplant has significantly improved the blurry vision of three people with severe damage to their cornea.

Early morning hours are best to see meteors, as you're standing on the swath of the surface of the Earth that's turned ...

Staggeringly diverse rock art motifs in galleries across what is today Serranía De La Lindosa, Colombia, record a history of ...