
Another 'Goldilocks' Planet Stirs ET Hopes
In late 2010, news media were abuzz about a very distant planet that astronomers thought might be just right for life because it appeared to be orbiting in the "habitable zone" of its star.1 Headlines referred to it as a Goldilocks planet, because it was possibly "not too hot and not too cold" for liquid water on its surface.

New Comet Origins Idea Adds New Problems
Comets continue to confound cosmologists, who often assert that the small celestial bodies came from the “Oort Cloud,” a theoretical group of planetary leftovers that supposedly orbits the solar system.
Mars Even More Hostile to Life Than Previously Thought
Hopes of finding life on Mars have been consistently dashed by data clearly showing that the planet's surface would be extraordinarily hostile to anything resembling a living cell. Scientific studies have demonstrated that conditions there would quickly put an end to any incipient life form.
Well-Engineered Ecosystems Bounce Back
How fast can a disaster zone bounce back? Apparently, faster than previously thought. Yale University ecologists conducted a meta-analysis of 240 studies of devastated ecosystems. They found that ecosystems damaged by pollution can be restored in as few as 10 years. Why then was it believed they would take so much longer to recover?
Solar System Secrets Solved
A recent issue of New Scientist contained a series of articles that explored “The Six Biggest Mysteries of Our Solar System.” One article posed the question, “How was the solar system built?”1 “Built” is a good word, considering the solar system contains an array of features that appear precisely orchestrated.



