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Space Man
New worlds, stellar explorations, planet surveys, both big and little bangs.
Water for thousands of oceans
ANN ARBOR, Mich.—For the first time, astronomers have detected around a burgeoning solar system a sprawling cloud of water vapor that’s cold enough to form comets, which could eventually deliver oceans to dry planets. Water is an essential ingredient for life. Scientists have found thousands of Earth-oceans’ worth of it within the planet-forming disk...
First comet found with ocean-like water
ANN ARBOR, Mich. — New evidence supports the theory that comets delivered a significant portion of Earth’s oceans, which scientists believe formed about 8 million years after the planet itself. The findings, which involve a University of Michigan astronomer, are published online in Nature. “Life would not exist on Earth without liquid water, and...