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The Tunguska explosion, 114 years ago today
The Tunguska explosion on June 30, 1908, is the largest asteroid impact in recorded history. It flattened 830 square miles of Siberian forest.
June 30, 2022
Geomagnetic storms: Will you lose power where you live?
Scientists studied past geomagnetic storms to learn more about how strong storms affect the power grid. The maps here show areas most at risk.
June 29, 2022
Ozone layer damage due to rocket launches?
A new study by NOAA says that with the increase in rocket launches over the next 20 years, the soot emitted from these launches could damage the ozone layer.
June 29, 2022
Baby woolly mammoth – beautifully preserved – found in Yukon
Miners in Yukon, Canada stumbled upon a well preserved, 30,000-year-old baby woolly mammoth. She's beautiful, geologists said.
June 28, 2022
Wow! Giant bacterium is largest ever discovered
Scientists say they have discovered the largest species of bacteria ever found. The giant bacterium is 0.4 inches (1 centimeter) long.
June 26, 2022
Better ice tower reservoirs for farming
Automation can build bigger and better ice tower reservoirs that use less water and last longer for farming use in dry, high-altitude locations.
June 26, 2022
Yellowstone partially reopened this week after June 13 closure
Historic Yellowstone flooding temporarily closed the park. The park reopened on a limited basis on June 22. Learn why the flood happened here.
June 24, 2022
Lightning storm largest in California in 5 years
A 2-day lightning storm pummeled California this week with more than 66,000 lightning events, bringing little rain but sparking wildfires.
June 24, 2022
Summer solstice, cycles of nature and Chinese philosophy
In Chinese thought, the summer solstice is associated with the color red, the sound of laughing, the fire element and a red phoenix.
June 21, 2022
Wildfire reaches Kitt Peak. Telescopes safe
A wildfire reached Kitt Peak on July 17, 2022. All of the 20+ telescopes at the site are now reported safe, although outbuildings burned.
June 18, 2022
