A light year is an incredible 9.5 trillion km! Bite-sized, mind blowing space facts about the Universe and the cosmos. Whether you're new to astronomy / astrophysics or not, check us out @ https://www.instagram.com/thespacekiosk/ Image: NASA

A light year is an incredible 9.5 trillion km! Bite-sized, mind blowing space facts about the Universe and the cosmos. Whether you're new to astronomy / astrophysics or not, check us out @ https://www.instagram.com/thespacekiosk/ Image: NASA

This view across 24,000 light years of the Milky Way Galaxy shows over 150,000 stars! Love glitter wallpapers, you will love #glitter galaxy designs http://www.zazzle.com/samsunggalaxycase/products?qs=glitter&sr=250021891597494752&pg=2&ps=96&rf=238478323816001889&tc=glitterwallpaper-suynghilonpin

Hubble Space Telescope Advent Calendar 2008

This view across 24,000 light years of the Milky Way Galaxy shows over 150,000 stars! Love glitter wallpapers, you will love #glitter galaxy designs http://www.zazzle.com/samsunggalaxycase/products?qs=glitter&sr=250021891597494752&pg=2&ps=96&rf=238478323816001889&tc=glitterwallpaper-suynghilonpin

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Astronomers have spotted a "rogue planet" - wandering the cosmos without a star to orbit - 100 light-years away. (via BBC News; image via ESO)

'Rogue planet' spotted 100 light-years away

Astronomers have spotted a "rogue planet" - wandering the cosmos without a star to orbit - 100 light-years away. (via BBC News; image via ESO)

Arp 227 consists of two galaxies in the constellation Pisces: the large (250,000 light-years across) lenticular galaxy NGC 474 (also known as UGC 864) located about 93 million light-years away, and the spiral galaxy NGC 470 at about 95 million light-years away. They lie at a separation of about 160,000 light-years. - Credit: NASA   Incredible

Arp 227 consists of two galaxies in the constellation Pisces: the large (250,000 light-years across) lenticular galaxy NGC 474 (also known as UGC 864) located about 93 million light-years away, and the spiral galaxy NGC 470 at about 95 million light-years away. They lie at a separation of about 160,000 light-years. - Credit: NASA Incredible

This NASA image shows NGC 5194. M51's stretch of over 60,000 light-years dwarf its companion galaxy, NGC 5195. Credit: Hubble Space Telescope, NASA.

This NASA image shows NGC 5194. M51's stretch of over 60,000 light-years dwarf its companion galaxy, NGC 5195. Credit: Hubble Space Telescope, NASA.

Hubble Space Telescope - The Helix Nebula in the constellation of Aquarius about 700 light-years away, spanning about 0.8 parsecs - 2.5 light-years

Hubble Space Telescope - The Helix Nebula in the constellation of Aquarius about 700 light-years away, spanning about 0.8 parsecs - 2.5 light-years

A dying star throws a cosmic tantrum in this combined image from Nasa's Spitzer Space Telescope and the Galaxy Evolution Explorer. The star's dusty outer layers are unraveling into space, glowing from the intense ultraviolet radiation being pumped out by the hot stellar core. This object, called the Helix nebula, lies 650 light years away in the constellation of Aquarius

Nasa marks 50 years of space photography - in pictures

A dying star throws a cosmic tantrum in this combined image from Nasa's Spitzer Space Telescope and the Galaxy Evolution Explorer. The star's dusty outer layers are unraveling into space, glowing from the intense ultraviolet radiation being pumped out by the hot stellar core. This object, called the Helix nebula, lies 650 light years away in the constellation of Aquarius

Nebula N159 spans over 150 light-years and is located in the neighboring Large Magellanic Cloud galaxy, about 170,000 light years away. Visible in the above picture are bright newborn stars, dark filaments of dust, and red-glowing hydrogen gas. Torrential stellar winds from hot, newborn, massive stars within the nebula sculpt ridges, arcs, and filaments in the vast cloud, which is over 150 light-years across.

Nebula N159 spans over 150 light-years and is located in the neighboring Large Magellanic Cloud galaxy, about 170,000 light years away. Visible in the above picture are bright newborn stars, dark filaments of dust, and red-glowing hydrogen gas. Torrential stellar winds from hot, newborn, massive stars within the nebula sculpt ridges, arcs, and filaments in the vast cloud, which is over 150 light-years across.

This planetary nebula, Mz3, is being cast off by a star similar to our Sun.  The 1000-kilometer per second speed of the expelled gas, the light-year long length of the structure, and the magnetism of the star visible at the nebula's center, all imply  Mz3 is hiding a second, dimmer star that orbits close in to the bright star. A competing hypothesis holds that the central star's own spin and magnetic field are channeling the gas. (ESA, NASA's Hubble, JPL-CalTech)

This planetary nebula, Mz3, is being cast off by a star similar to our Sun. The 1000-kilometer per second speed of the expelled gas, the light-year long length of the structure, and the magnetism of the star visible at the nebula's center, all imply Mz3 is hiding a second, dimmer star that orbits close in to the bright star. A competing hypothesis holds that the central star's own spin and magnetic field are channeling the gas. (ESA, NASA's Hubble, JPL-CalTech)

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