Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror
Check out the new SourceForge HTML5 internet speed test! No Flash necessary and runs on all devices. ×
Space

Submission + - Could ET Find Earth with a Telescope?

Active Seti writes: "If aliens were hunting life outside their own planet with telescopes a bit bigger than our own, could they peer through the vastness of space and lock onto Earth as a likely home for life? Researchers say with a space telescope larger than the Hubble Space Telescope pointed directly at our sun, observers could measure Earth's 24-hour rotation period, leading to observations of oceans and the chance of life. "They would only be able to see Earth as a single pixel, rather than resolving it to take a picture," said Astronomer Eric Ford. "But that could be enough for them to identify our planet as one that likely contains clouds and oceans of liquid water." Astronomers could infer that anomalies in the pattern were caused by changing weather patterns, most prominently, clouds, Ford said. Although some uninhabitable planets are extremely cloudy, the repeated presence and absence of clouds indicates active weather, so finding similar variability on another planet would be a reasonable indication of liquid water. The research will be useful to astronomers designing the next generation of space telescopes because it provides an outline of the capabilities required for studying the surfaces of Earth-like planets."
The Internet

Submission + - Americans giving up friends and sex for Web life

Stony Stevenson writes: A survey into how the Web affects American adults has found that surfing the net has become an obsession for many, with the majority of U.S. adults feeling they cannot go for a week without going online and one in three giving up friends and sex for the Web.

The survey asked 1,011 American adults how long they would feel OK without going on the Web and found that 15 percent said just a day or less, 21 percent said a couple of days and another 19 percent said a few days. It also found that 20 percent said they spend less time having sex because they are online.

Slashdot Top Deals

The test of intelligent tinkering is to save all the parts. -- Aldo Leopold

Working...