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.
The post Geomagnetic storms: Will you lose power where you live? first appeared on EarthSky.
Ursa Minor the Lesser Bear is the Little Dipper
Ursa Minor is the Lesser Bear, but you might know it as the Little Dipper. Also, its brightest star is Polaris, the North Star.
The post Ursa Minor the Lesser Bear is the Little Dipper first appeared on EarthSky.
Boötes the Herdsman and its bright star Arcturus
Boötes the Herdsman is a large constellation that holds one of the brightest stars in the sky, Arcturus. Only 3 others stars and the sun are brighter.
The post Boötes the Herdsman and its bright star Arcturus first appeared on EarthSky.
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.
The post Wildfire reaches Kitt Peak. Telescopes safe first appeared on EarthSky.
How long does evolution take? It happens on two different timescales
To make sense of the fact that adaptation can happen quickly and yet true evolutionary change seems to take forever, biologists suggest that evolution runs on two very different clocks
Yellowstone Park temporarily closed due to flooding: Images and video here
Historic Yellowstone flooding temporarily closes the park as floodwaters wash out roads and buildings. Surrounding communities are also devastated by flooding.
The post Yellowstone Park temporarily closed due to flooding: Images and video here first appeared on EarthSky.
Magnetic pole flip on Earth? Probably not soon
Is the South Atlantic Anomaly a sign that a magnetic pole flip on Earth is imminent? No, say researchers who analyzed 9,000 years of magnetic field history.
The post Magnetic pole flip on Earth? Probably not soon first appeared on EarthSky.
Ocean ringsâ mystery stems from shape of seafloor
Researchers explain why some ocean rings, or eddies, last for months, while other last for years. The secret is the seafloor, they said.
The post Ocean ringsâ mystery stems from shape of seafloor first appeared on EarthSky.
South Australia’s Climate Emergency: Get Ready For Carbon Trackers
The new South Australian Labor government has declared a ‘climate emergency.’ Climate lockdowns, surveillance of your ‘carbon footprint’, and restrictions on how much fuel and meat you consume might sound like conspiracy theories now, but the stage is being set…
New record: Tonga volcano biggest of 21st century
The Hunga Tonga-Hunga Haâapai eruption was the largest of the 21st century, and the explosion matched the eruption of Krakatoa in 1883.
The post New record: Tonga volcano biggest of 21st century first appeared on EarthSky.
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