Moon, Jupiter and Moons

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Skygazers around planet Earth enjoyed the close encounter of planets and Moon in July 15′s predawn skies. And while many saw bright +Jupiter next to the slender, waning crescent, Europeans also had the opportunity to watch the ruling gas giant pass behind the lunar disk, occulted by the +Moon as it slid through the night. Clouds threaten in this telescopic view from Montecassiano, Italy, but the frame still captures Jupiter after it emerged from the occultation along with all four of its large Galilean moons. The sunlit crescent is overexposed with the Moon’s night side faintly illuminated by Earthshine. Lined up left to right beyond the dark lunar limb are +Callisto, +Ganymede, Jupiter, +Io and +Europa. In fact, Callisto, Ganymede, and Io are larger than Earth’s Moon, while Europa is only slightly smaller.

How NASA might build its very first warp drive


A few months ago, physicist Harold White stunned the aeronautics world when he announced that he and his team at NASA had begun work on the development of a faster-than-light warp drive. His proposed design, an ingenious re-imagining of an Alcubierre Drive, may eventually result in an engine that can transport a spacecraft to the nearest star in a matter of weeks — and all without violating Einstein’s law of relativity. We contacted White at NASA and asked him to explain how this real life warp drive could actually work.

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