The planet, known as Kepler-47c, is a gas giant and therefore probably not suitable for life as we know it. But its existence hints that smaller, rockier worlds may inhabit other two-star systems' habitable zones —that just-right range of distances where liquid water can exist.

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The Kepler-47 system, whose discovery was announced Tuesday (Aug. 28), dwells about 5,000 light-years away, in the constellation Cygnus (The Swan). It is a close binary system, with two stars orbiting near each o...
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The Kepler Space Telescope has notched another milestone discovery: double planets circling double stars in the constellation Cygnus, some 5,000 light-years away. It's the first time multiple planets have been found in a binary star system.

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The new system, named Kepler-47, has one sunlike star and a companion about a third its size. The two planets—one three times bigger than Earth and the other slightly larger than Uranus—orbit around both stars in what is likely a delicate dance.

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Did the Germans launch a crewed rocket into space in 1933?

Bruno Fischer and the three officials then retired to a small hollow in the ground about two hundred yards away and Fischer closed the switch that sent the rocket on its journey. There was a blinding flash and a deafening explosion, and the slim torpedo-shaped body was gone from the steel framework in which it had rested.

Did the Germans launch a crewed rocket into space in 1933?"A few minutes later it came into sight again, floatin...
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