National Geographic

VOICES Voices Icon Ideas and Insight From Explorers


Tag archives for oxygen

Blue Blood Helps Octopus Survive Brutally Cold Temperatures

The characters from the Great Gatsby aren’t the only blue bloods in the news lately. Researchers at the Alfred Wegener Institute for Polar and Marine Research in Germany have found that a specialized pigment in the blood of Antarctic octopods allows them to survive temperatures that often drop below freezing. It’s all down to a…

Apollo 13 Anniversary: What if NASA Had Failed?

Forty years ago today the collective heart of the nation missed a beat when an oxygen tank on the Apollo 13 service module ruptured as the craft was en route to the moon, nearly 200,000 miles (322,000 kilometers) from Earth. Famously, NASA held true to their motto that failure is not an option, and the…

Why Does Venus Glow in the Dark? Just Say NO

Right now people in the Northern Hemisphere are enjoying the last few weeks when Venus will shine bright in the night. Around the end of March the “evening star” becomes the “morning star,” and the planet won’t grace the dusk skies again until next year. (Read more at EarthSky to find out why Venus makes…