Word: planetsized
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Dates: during 1990-1999
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Cornell University astronomer Carl Sagan, perhaps the most prominent champion of the search for extraterrestrial life, was exultant. "If the results are verified," he said, "it is a turning point in human history, suggesting that life exists not just on two planets in one paltry solar system but throughout this...
What about the idea that Mars seeded Earth? Recent findings suggest there could have been substantial biological exchange between the planets. Every year, researchers calculate, two tons of Martian material rain down on Earth, and two tons of terrestrial rock smash into Mars. The chances that a primitive creature secreted...
Saunders compared the discovery of life on Mars to the detection of planets around distant stars earlier this year. The two discoveries together, Saunders said, greatly increase the odds that intelligent extraterrestrial life exists.
WASHINGTON, D.C.: Tiny golden flecks in a 4.5 pound rock that tumbled out of space into an Antarctic ice field 13,000 years ago have yielded what may be the most significant planetary find in decades. After studying the Martian meteorite for two years, NASA and Stanford University scientists say...
WASHINGTON, D.C.: Even as NASA is studying a rock the size of small potato to see whether there is life on other planets, Congress must decide how much money to give the space agency. At NASA's press conference announcing the stunning finding, agency administrator Daniel Goldin introduced his panel...