Editorial: Our window to other worlds


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Posted Online: March 06, 2014, 12:00 am
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Pittsburgh Post-Gazette
In 2013, NASA's Kepler Space Telescope, the space agency's most sophisticated planet hunter, malfunctioned, putting its mission in jeopardy. NASA is now in the midst of reprogramming Kepler and re-purposing it so that it can continue transmitting in a more limited capacity.

Meanwhile, NASA scientists haven't been sitting around idly singing the blues. They're ecstatic about four years' worth of information that has been salvaged from the Kepler mission. After many months of studying the data and images using a variety of interpretive techniques, NASA is confidently reporting that the population of planets circling 305 relatively nearby stars has jumped by 715. In one fell swoop, this has tripled the number of known planets in the Milky Way.

Our planetary neighbors are an interesting bunch, too. Ninety-five percent of them are smaller than Neptune, which is four times the size of Earth. Only four of the planets are within the habitable zone of their host sun, meaning they could contain liquid water, which is necessary for life as we know it.

They're also bunched close together like balls on a pool table, which is unlike the planets in Earth's solar system. None of these planets look like places where humans might want to relocate someday. Scientists hope that studying these systems will give them insights into the formation of Earth.

Because NASA hasn't had to deal with new data from Kepler since last year, the agency has had time to sift through the information it already gathered. Thank goodness for that.

Scientists are now comfortable with the hypothesis that planets are ubiquitous, since so many have been found in a relatively tiny sliver of space. There could be billions in the Milky Way alone. Perhaps Earth isn't as unique as its inhabitants once thought.

















 



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  Today is Thursday, Oct. 2, the 275th day of 2014. There are 90 days left in the year.

1864 -- 150 years ago: The ladies have adopted the fashion of wearing representations of insects in the flowers on their bonnets. Some look very natural.
1889 -- 125 years ago: T.F. Cary, former Rock Island alderman, has accepted a position as salesman for a Chicago wallpaper house and plans to move to that city.
1914 -- 100 years ago: Work on the new telephone building on 18th Street between 6th and 7th avenues is progressing rapidly.
1939 -- 75 years ago: Rock Island's new theater at 3rd Avenue and 19th Street will have a name significant of its location. The "Rocket" is scheduled to open Thanksgiving Day.
1964 -- 50 years ago: Two of Rock Island's newest water towers were vandalized last night, including the one at 38th Street and 31st Avenue, where police took five Moline boys into custody about 9 p.m..
1989 -- 25 years ago: Some of us who live in the Quad-Cities take the Mississippi River for granted, or at least we used to. But the river is not taken for granted by our visitors. And most Quad-Citians are realizing the importance of the river to this area as increased emphasis is placed on tourism.







(More History)