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ATLASGAL survey of southern Milky Way completed

A spectacular new image of the Milky Way has been released to mark the completion of the APEX Telescope Large Area Survey of the Galaxy (ATLASGAL). The APEX telescope in Chile has mapped the full area of the galactic plane visible from the Southern Hemisphere for the first time at submillimetre wavelengths — between infrared light and radio waves.

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A trio of Saturnian moons

Three of Saturn’s moons — Tethys, Enceladus and Mimas — are captured in this group photo from NASA’s Cassini spacecraft. Tethys appears above the rings, while Enceladus sits just below centre and Mimas hangs below and to the left of Enceladus. This view looks toward the sunlit side of the rings from narrowly above the ring plane.

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Virgo Cluster galaxy’s stunning gas tail

Astronomers have discovered a spectacular tail of gas more than 300,000 light-years across coming from a galaxy known as NGC 4569, 55 million light-years away in the Virgo Cluster. The plume is made up of hydrogen gas — the material new stars are made of — and is five times longer than the galaxy itself.

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Hubble’s blue bubble in Carina

At the centre of this beautiful NASA/ESA Hubble Space Telescope image is a Wolf–Rayet star known as WR 31a, located about 30,000 light-years away in the southern constellation of Carina. The distinctive blue bubble is a Wolf–Rayet nebula — an interstellar cloud of dust, hydrogen, helium and other gases expanding at a rate of around 137,000 miles per hour.

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Introducing WFIRST — NASA’s wider set of eyes on the universe

With a view 100 times bigger than that of the Hubble Space Telescope, NASA’s Wide Field Infrared Survey Telescope (WFIRST) will aid researchers in their efforts to unravel the secrets of dark energy and dark matter, and explore the evolution of the cosmos. It also will discover new worlds outside our solar system and advance the search for worlds that could be suitable for life.