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The frozen canyons of Pluto’s north pole

This ethereal scene captured by NASA’s New Horizons spacecraft tells yet another story of Pluto’s diversity of geological and compositional features — this time in an enhanced colour image of the north polar area. A canyon about 45 miles wide runs close to the north pole, its degraded walls suggesting evidence for an ancient period of tectonics.

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Surprise discovery of new Southern Hemisphere meteor shower

A new network of video surveillance cameras in New Zealand detected a surprise meteor shower on New Year’s Eve. The shower is called the Volantids, named after the constellation Volans, the flying fish, from which the meteoroids appear to stream towards us. The shower was not seen the year before and is not known from past radar observations. It could be an early warning that we should be looking for a potentially hazardous comet in that orbit.

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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.