A strong majority of Americans say they're worried about climate. So why do they hear so little about it in the news?

Three merging galaxies host three active black holes, offering rare insight into galaxy and black hole growth.

After completing your single task (and taking a break to acknowledge your progress), you move to the next concrete action.

It’s been a tough year for the environment. And yet, people all over the country are working hard to reduce greenhouse gases, ...

From new exoplanetary neighbors and a weakening dark energy to the best evidence for life on Mars and an interstellar comet ...