Laudato Si' could be as transformative as Rerum Novarum, which opened the fruitful chapter of Catholic social teaching. Let us walk with Pope Leo XIV in writing this next chapter, already off to a ...

If we only think on cosmic scales, everything becomes too overwhelming to consider or tackle," writes Dan Horan.

The robotic Tianwen-2 spacecraft will collect samples from Kamoʻoalewa, which some scientists suspect is a fragment of the moon.

Palynologists who study tiny pollen fossils share 4 stories found in grains that fell hundreds to millions of years ago.

The North American prairie rivals the Amazon rainforest in its biological diversity, and it’s disappearing even faster.

Parts of the United States have gotten an early taste of summer weather, as temperatures and humidity are on the rise. Summer ...