Denisovan Genome Reveals Interbreeding With Modern Humans
September 1, 2012
With the publishing of the Denisovan genome, the genetic profile of interfertile humans has widened considerably.
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Planetary Radiometric Dates 1/3 Younger
May 1, 2012
The half-lives of radioactive isotopes may not be as well-known as thought. One decay rate frequently used to date solar system objects had to be adjusted down to 66% of its former assumed value, impacting theories of planet formation.
Mt. St. Helens Recalls Overturned Paradigms
May 18, 2010
The eruption of Mt. St. Helens in May 1980 not only eroded mountains and canyons, it caused earthquake shifts in geological paradigms.
Stretching Saturn’s Rings in Time
December 13, 2007
An expert on planetary rings proposes a new way to keep them billions of years old.
Supernova 80% Younger Than Thought
October 1, 2006
The age of a supernova remnant has dropped from 10,000 years to less than 2,000 years. How?