Astronomers have discovered a potentially habitable new planet that is around 146 light-years away and is actually remarkably similar to Earth with just one stark difference: it could be colder than ...

In 1989, environmentalist Bill McKibben announced to the world that nature was dead. Due to the rapid rate and scale of ...

AMHERST, Mass. — Brian House, in long beard and muck boots, leads me through a pine forest on a cold afternoon until, on the edge of a marsh, we find it: an array of three circles formed by plastic ...