NASA's Chandra X-ray Observatory has captured many spectacular images of cosmic phenomena over its two decades of operations, but perhaps its most iconic is the supernova remnant Cassiopeia A.
Astronomy
Aug 27, 2019
0
339
As ice sheets began melting at the end of the last ice age, a series of cataclysmic floods called the Missoula megafloods scoured the landscape of eastern Washington, carving long, deep channels and towering cliffs through ...
Earth Sciences
Feb 14, 2022
2
1906
A new study has revealed the most intense heatwaves ever across the world—and remarkably some of these went almost unnoticed decades ago.
Earth Sciences
May 4, 2022
2
1004
(AP) -- The manager of most of the electricity in the Pacific Northwest is running such a surplus of power from hydroelectric dams that it put wind farms on notice Friday that they may be shut down as early as this weekend.
Energy & Green Tech
May 14, 2011
41
0
A NASA top official wrestled with what he thought was a hypothetical question: What should you tell the astronauts of a doomed space shuttle Columbia?
Space Exploration
Feb 1, 2013
43
0
On August 4, 2014, Mount Polley Mine in British Columbia, Canada, made international news when a dam failure released millions of cubic meters of tailings—hazardous by-products of mining operations—into the watershed. ...
Earth Sciences
Sep 12, 2022
1
18
When we think of spaceflight, we think astronauts. You're a human, you perceive the Universe with your human-centric attitudes. You… specist.
Space Exploration
May 5, 2015
0
27
Research published in the journal BMC Evolutionary Biology has shed new light on why some grey squirrels are black.
Evolution
Aug 13, 2019
0
624
For more than 150 years, scientists have been incorrectly classifying a group of fossil insects as damselflies, the familiar cousins of dragonflies that flit around wetlands eating mosquitoes. While they are strikingly similar, ...
Paleontology & Fossils
Feb 24, 2021
3
5583
By combining models of magnitude 9 to 9.2 earthquakes on the Cascadia Subduction Zone with geological evidence of past coastal changes, researchers have a better idea of what kind of megathrust seismic activity was behind ...
Earth Sciences
Oct 29, 2019
0
724
