Save the Frogs Day - a global amphibian conservation effort - is today, Tuesday, April 28, 2026. Amphibian health is an important marker of ecosystem quality.
A new computer simulation shows the Milky Way and nearby galaxies are in a sheet of dark matter between 2 voids. Galaxies on the outside fly away from us.
2025 MN45 - a newly discovered fast-spinning asteroid - is the fastest-rotating object of its size ever discovered. It rotates once every 1.88 minutes.
The fall hummingbird migration typically lasts from August through October. Spot the birds in every U.S. state and Canadian province as they travel south.
A magnitude-8.8 earthquake struck off the coast of eastern Russia on Wednesday, July 30. The resulting 13-foot (4-meters) tsunami struck the Russian coast.
Award-winning reporter and editor Dave Adalian's fascination with the cosmos began during a long-ago summer school trip. That fieldtrip never ended, and still Dave pursues adventures under the night sky.
Dave grew up in California's Tulare County - where the San Joaquin Valley meets the Sierra Nevada - a wilderness larger than Delaware and Rhode Island combined.
He studied English, American literature and mass communications at the College of the Sequoias and the University of California, Santa Barbara. He has worked as a reporter and editor for a variety news publications on- and offline during a career spanning more than 30 years.