New guidelines for scientists and regulators show how deliberate infection of volunteers for vaccine trials can be done ethically

The Atlantic Rainforest has been so savagely clearcut and burned over several centuries that only approximately 12% now remains. 

Researchers at the University of Southampton have shown that an extinction event 360 million years ago, that killed much of the Earth’s plant and freshwater aquatic life, was caused by a brief breakdown of the ozone layer that shields the Earth from damaging ultraviolet (UV) radiation.

Sea snakes first entered the marine environment 15 million years ago and have been evolving ever since to survive in its changing light conditions, according to a new study.

University at Buffalo chemists have shown that self-assembling molecular traps can be used to capture PFAS — dangerous pollutants that have contaminated drinking water supplies around the world.

A new understanding of our planet’s deepest earthquakes could help unravel one of the most mysterious geophysical processes on Earth.

Hokkaido University scientists have made an adenovirus that specifically replicates inside and kills cancer cells by employing special RNA-stabilizing elements.

First-of-a-kind maps show how the depth of this insulating snow layer changes from month to month.

A Texas A&M AgriLife study sheds light on the first steps of immune defense against microbes.

The effect of nitric acid on aerosol particles in the atmosphere may offer an explanation for the smog seen engulfing cities on frosty days.