Over the past 14,000 years, penguin numbers in East Antarctica increased 135-fold because of disappearing glaciers and sea ice. How long can populations keep growing?
If a gap interrupts a swarm of army ants, they build a 'living bridge' using their own bodies. How? New research says ants perform a collective computation.
The World Meteorological Organization says high temps in 2015 are due to the overall trend of global warming, combined with the strong ongoing El Niño.
Astronauts are spending a year aboard the International Space Station, and researchers are looking at what happens to their bodies at the molecular level.
Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. She and her husband live in Tennessee, where they enjoy guitar playing and singing. They have 2 grown sons.