Stars Kill Their Planets
January 19, 2023
Many stars, including sunlike stars, murder their children. Only special conditions allow for habitability.
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How Astrobiology Could Be Scientific
January 9, 2020
Despite its propensity for wild speculation about life in space, there's one way Astrobiology could provide useful science.
Hope, Not Evidence, Drives Astrobiology
August 25, 2016
Earth-size exoplanets are not evidence for alien life. They are evidence for orbiting bodies.
Only Earth Is a Life Haven
June 23, 2016
Here are more discoveries that make it reasonable to think complex life is rare in the universe, and might be unique to Earth.
Why Chernobyl Neighbors Are Not Dying
April 21, 2016
Surprising scientists, both people and animals are doing OK around the world's worst nuclear accident site.
Astrobiology: The Joy of Being Wrong
August 18, 2015
An astrobiologist looks forward to the day when everything he says is totally wrong.
Animal Superheroes
July 29, 2015
Here are some animals, some common and some little-known, whose abilities astonish scientists.
Fossil Plant Soft Tissue Didn't Evolve
April 10, 2014
Original material in a fossil has been detected, this time from a leaf that is identical to modern leaves despite an alleged 50 million years.