1st solar eclipse of 2022 appears in southern skies

The first solar eclipse of 2022 appeared in southern skies Saturday. Here’s when another partial one is expected later this year — and when the big total eclipse is coming to America that everyone’s been waiting for.

What a toxic inferno like Venus can tell us about Earth

Venus is a fiery world with sulfuric acid clouds and a toxic atmosphere fueled by a runaway greenhouse effect, but scientists believe that about 800 million years ago, it could have been more like Earth.