Dwarf Galaxies Found Cloaking Primitive Stars From the Early Universe

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New observations using ESO’s Very Large Telescope have been used to solve an important astrophysical puzzle concerning the oldest stars in our galactic neighborhood hidden until recently in dwarf galaxies orbiting the Milky Way. In comparison to the Milky Way, most dwarf galaxies are blob-like, 85% smaller (around 6700 vs 100,000 light-years across), containing around 30 billion stars.

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New ‘Hitchhiker’s Guide’ to the Milky Way –Map Reveals Large-Scale Magnetic Field & Two Supernova Remnants

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It may not be much use to hitchhikers through the galaxy, but it is extremely valuable to astronomers: the new radio atlas of the Milky Way. After almost ten years of work, researchers at the Max Planck Society and the Chinese Academy of Sciences have completed their investigation into the polarised radio emission in the galactic plane. The atlas is based on observations undertaken with the 25-metre radio telescope in the Chinese city of Urumqi and shows an area of 2,200 square degrees of the sky.

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Extreme Galaxies –Some 3000 Times Brighter Than Milky Way

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Arp 220 is the closest galaxy to the Milly Way with an extreme luminosity, defined as being more than about 300 times that of our own galaxy. Some dramatic galaxies have values of luminosity ten times brighter still. Astronomers are still piecing together the reasons for these huge energy outputs, while sorting out why our own galaxy is so modest.

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Image of the Day: Starburst Galaxy with Two Active Supermassive Black Holes

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"The past, present and future are only illusions, even if stubborn ones."

Albert Einstein

NGC 6240, a butterfly-shaped galaxy that is the product of the collision of two smaller galaxies, revealed that the central region of the galaxy (inset below) contains not one, but two active giant black holes.

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Do Earth’s Ocean Extremeophiles Hint at What Lies Beneath Jupiter’s Europa?

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Wonder what life of Jupiter's moon, Europa, might look like? Checkout a  new species of archaebacteria, Pyrococcus CH1,discovered thriving on a mid-Atlantic ridge within a temperature range of 80 to 105°C and able to divide itself up to a hydrostatic pressure of 120 Mpa (1000 times higher than the atmospheric pressure). Alieve won't help down there.

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