Thanks to years of drought followed by above-average rainfall, California is enjoying a fantastic wildflower superbloom in 2017. See before-and-after space images here.
The enormous ring of light that appeared in the night sky on April 2 - above a thunderstorm in the Czech Republic - was a rare and fleeting lightning phenomenon.
Audubon website lets you enter your zip code to see a list of the best bird-friendly plants for your yard. Plus a free app to identify the birds you see.
The last remnant of a once-enormous ice sheet will be gone in about 300 years, according to a new study. Scientists say warming temperatures are the reason.