Unnatural Selection: Chicxulub Impact Highly Selective on Victims
July 11, 2025
Does it make any sense that delicate creatures survived what killed all the dinosaurs?
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Archive: Motors, Teens, Geology Mysteries, Mars Flood, Pluto, Stem Cells, More
December 6, 2024
Here are some of the stories we were reporting in early December 2001, restored from archives.
Geology Tackles its Great Anomaly
February 2, 2022
A billion years of evolutionary time is missing at this bedrock boundary. How does secular geology deal with it?
Dino Expert Cannot Explain Soft Tissue
October 5, 2020
Overheard on the Editor's vacation: a dinosaur expert is baffled by soft tissue.
What’s Happening at Betelgeuse?
January 24, 2020
Astronomers are puzzled by the dimming of one of the brightest stars in the sky, Betelgeuse in Orion.
Dark Matter May Not Exist
March 11, 2019
Astrophysicists may be tiring of searching for things they know nothing about. The consequences could be revolutionary.
Climate Science Underestimates Natural Sources of Warming
June 18, 2018
Scientists discover two more potent sources of greenhouse gases, both of which have nothing to do with human activity.
Astronomers Missed Half the Visible Universe
November 10, 2014
Dark matter is still a mystery, but meanwhile, half of the real stars in the universe have been hiding in plain sight.
Evolution Bends to Fit the Evidence
May 2, 2011
A good scientific theory should predict what is observed. When the theory is confronted with unexpected evidence, should the theory be jettisoned or modified?