Researchers uncover secrets of curious fish's mysterious nighttime 'songs' and other top stories.

• Researchers uncover secrets of curious fish's mysterious nighttime 'songs'

  

  In 1924, an academic called Charles Greene described how the “California singing fish” would hum at night. Just why the plainfin midshipman is so vocal at night remained a mystery for nearly a century, until now.For much of the year, you won’t hear these fish singing at all. The plainfin midshipman, named after the bioluminescent organs on its underside, which reminded early observers of uniform buttons, resides in the depths of the ocean during the fall and winter. During the spring and early ..

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• NASA to reveal 'surprising' activity on Jupiter's moon Europa

  

  NASA teased a "surprising" announcement for Monday, based on Hubble Space Telescope images of the celestial body, which many experts believe could contain a subsurface ocean, even possibly some form of life. The US space agency has already ...

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• [ September 23, 2016 ] Falcon 9 rocket explosion traced to upper stage helium system Falcon 9

  

  Credit: US Launch Report The investigation into a dramatic Falcon 9 rocket explosion earlier this month at Cape Canaveral has determined a “large breach” in the launcher’s upper stage helium pressurization system led to the destruction of the booster and its $200 million satellite payload, SpaceX said Friday. Officials said returning to flight “safely and reliably” with the Falcon 9 rocket, a critical vehicle for NASA’s commercial crew and cargo program for the International Space Station, is S..

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• Building the Space Launch System's core stage

  

  The largest rocket stage in the world is coming together piece by piece at NASA's Michoud Assembly Facility in New Orleans. Large elements for NASA's Space Launch System are in production and will be joined together to create the rocket's 212-foot-tall core stage, the backbone of the SLS rocket. Why is NASA building the world's most powerful rocket? Because SLS is ready to support both near-term missions in the proving ground around the moon starting in 2018, while at the same time being..

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• If Aliens Call, We Might Not Want To Answer, Says Stephen Hawking

  

  Stephen Hawking has said it before and he’ll say it again: If extraterrestrials call, do not answer ― at least, not without careful consideration. The renowned theoretical physicists hosts “Stephen Hawking’s Favorite Places,” a new short film available on the streaming service Curiosity Stream. The film follows Hawking around the universe as he “travels” in a computer-generated imagery spacecraft, giving the audience a peek into simulations of a black hole and Gliese 832c, an earth-like planet o..

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