Astrophysical Journal

TRAPPIST-1 is older than our solar system

If we want to know more about whether life could survive on a planet outside our solar system, it's important to know the age of its star. Young stars have frequent releases of high-energy radiation called flares that can ...

dateAug 14, 2017 in Astronomy
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Magnetic fields in massive star formation cores

Studies of molecular clouds have revealed that star formation usually occurs in a two-step process. First, supersonic flows compress the clouds into dense filaments light-years long, after which gravity collapses the densest ...

dateAug 07, 2017 in Astronomy
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The outer galaxy

The sun is located inside one of the spiral arms of the Milky Way galaxy, roughly two-thirds of the way from the galactic center to the outer regions. Because we are inside the galaxy, obscuration by dust and the confusion ...

dateJul 31, 2017 in Astronomy
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