SCIENCE IN THE NEWS WEEKLY
Life May Have Begun in Upper Atmosphere
An experiment that simulated chemical reactions in the atmosphere of Saturn's moon Titan suggests that life could have begun in the sky. It was the first experiment to produce amino acids and the nucleotide bases without the need for liquid water, researchers said.
In other space news, astronomers have gotten a rare view of a recent asteroid collision. It was the first time scientists have been able to observe such a collision while it was happening.
Elsewhere, scientists enlisted teenagers to scan thousands of computerized "star plots" in a galactic treasure hunt for pulsars in which two students have hit the jackpot.
And Virgin Galactic's suborbital spaceship Enterprise recently made its first solo test flight. If all continues to go well, it will soon take people on short trips above the atmosphere. The ticket price: $200,000.
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VIDEO: How Hair Ice Grows
In 2013, American Scientist featured an article on odd ice formations on plant stems, including these curling ribbons of ice. One of the types of ice discussed in the article was hair ice—long, thin strands of ice that grow under quite specific conditions. The only problem is that a new study shows the theory put forth at the time—that gas pressure pushes the water out—isn’t correct... (click the link above to read more).
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