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Astronomers have made some very interesting discoveries in space recently, each potentially bringing them one step closer to finding habitable exo-planets with signs of extra-terrestrial life-forms.

A study appearing this week in the journal Nature revealed findings extracted from the combined offerings of three NASA space telescopes: Hubble, Spitzer, and Kepler. Data from the telescopes showed clear skies and steamy water vapor on a gaseous planet outside our solar system.
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Hopes of finding intelligent life in the universe have been raised by more unidentified signals from outer space detected by astronomers in Puerto Rico, validating reports of similar signals identified by researchers in Australia.

The discovery of a split-second burst of radio waves by scientists using the Arecibo radio telescope in Puerto Rico provides important new evidence of mysterious pulses that appear to come from deep in outer space.
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NASA has announced that an experimental propulsion system that needs only energy from sunlight appears to produce sufficient thrust to power spacecraft. This means that, once a spacecraft is in orbit, it will be able to accelerate away from the earth to the edges of the solar system, without fuel. This means that travel throughout the solar system is going to become much more possible and far cheaper.
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A newly discovered planet in a binary star system located 3,000 light-years from Earth is expanding astronomers’ notions of where Earth-like—and even potentially habitable—planets can form, and how to find them.

At twice the mass of Earth, the planet orbits one of the stars in the binary system at almost exactly the same distance from which Earth orbits the sun. However, because the planet’s host star is much dimmer than the sun, the planet is much colder than the Earth—a little colder, in fact, than Jupiter’s icy moon Europa.

Four international research teams, led by professor Andrew Gould of The Ohio State University, published their discovery in the July 4 issue of the journal Science.
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