April 21, 2017, 8:21 a.m. by Angela Nelson
Time-lapse artists and filmmakers Gavin Heffernan and Harun Mehmedinović use their talents to show the impact of light pollution in North America.
Bizarre clouds over Bermuda Triangle may finally solve longtime mystery
October 22, 2016, 1:11 p.m. by Bryan Nelson
Clouds with sharp hexagonal features can cause sudden microbursts with winds over 170 mph.
At Glacier Bay, witness a national park emerge from an ice age
October 18, 2016, 2:24 p.m. by Jaymi Heimbuch
Explore one of the few places where you can see a forest ecosystem regenerating after centuries of ice.
Hurricane Matthew is scary (and serene) when seen from the sky
October 5, 2016, 12:05 p.m. by Mary Jo DiLonardo
Two very different images show a bird's eye-view of the storm.
Carbon dioxide in Earth's atmosphere just reached a major milestone
September 29, 2016, 9:36 a.m. by Russell McLendon
CO2 data from Mauna Loa in Hawaii suggest 400 ppm is the new normal.
Stunning photo project explores our complex relationship with the night sky
CO2 101: Why is carbon dioxide bad?
6 surprising sources of methane
Everything you need to know about Earth's orbit and climate change
Magnetic north shifting by 40 miles a year, might signal pole reversal
Why steam fog rises from ponds in the morning