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Earth’s eclipses are special
Solar eclipses aren't exclusive to Earth, but eclipses viewed from our planet have few rivals in the solar system. A word about Earth's solar eclipses, and what eclipses would be like on other planets, here.
August 3, 2017
To restore soils, feed the microbes
Healthy soil teems with bacteria, fungi, viruses and other microorganisms that help store carbon and fend off plant diseases.
August 3, 2017
Gauging Arctic’s summer sea ice melt
This past winter, Arctic sea ice extent sank to a record low for the 3rd straight year. Now, NASA is looking at the summer melt season's impact on the Arctic's oldest, thickest sea ice.
July 27, 2017
How to watch Shark Week
This is a week of dueling shark-athons on television. A biologist advises viewers to take what they see with a large grain of sea salt.
July 24, 2017
Synchronized symphony of fireflies
This video shows a timelapse journey through Smoky Mountains National Park during world's largest gathering of synchronized fireflies. Beautiful!
July 24, 2017
Global methane levels hitting new highs
Here's why, after a 2000-era plateau, global levels of the greenhouse gas are hitting new highs.
July 19, 2017
Fire ants build with no master plan
Researchers identified simple behavioral rules that allow these tiny creatures to collaboratively build elaborate structures - rafts and towers - with no one in charge.
July 18, 2017
Moon shadow versus sun reflection
This 5-second video shows a reflected image of the sun - a sun glint - as a bright spot crossing Earth from right to left. It also shows a dark spot - the moon's shadow - moving the opposite way.
July 17, 2017
Does your dog pronk?
Among wild animals, pronking may be a way of avoiding predators. But when you see an animal pronk, you can't but think it's leaping for joy.
July 17, 2017
Last survivors on Earth?
Scientists say they’re likely to be tardigrades - tiny, 8-legged marine creatures - which can survive until the sun dies, long after we humans have disappeared.
July 14, 2017
