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"New Study Finds Milky Way Has Four Arms, Not Two - Sometimes it’s hard to see the shape of something from the inside." From Popular Science

"New Study Finds Milky Way Has Four Arms, Not Two - Sometimes it’s hard to see the shape of something from the inside." From Popular Science

Star formation in the southern Milky Way This mosaic of images from the Wide Field Imager on the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile shows two dramatic star formation regions in the southern Milky Way. The first of these, on the left, is dominated by the star cluster NGC 3603, located about 20 000 light-years away, in the Carina–Sagittarius spiral arm of the Milky Way galaxy. The second object, on the right, is a collection of glowing gas clouds known as NGC…

Star formation in the southern Milky Way This mosaic of images from the Wide Field Imager on the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile shows two dramatic star formation regions in the southern Milky Way. The first of these, on the left, is dominated by the star cluster NGC 3603, located about 20 000 light-years away, in the Carina–Sagittarius spiral arm of the Milky Way galaxy. The second object, on the right, is a collection of glowing gas clouds known as NGC…

What Does Space Smell Like? The final frontier smells a lot like a Nascar race-a bouquet of hot metal, diesel fumes and barbecue. The source? Dying stars, mostly. Astro Whiff ~ Space is full of smells, but mostly the burning odor of hydrocarbons. Space is full of smells, but mostly the burning odor of hydrocarbons. IMAGE BY NASA/Scott Kleinman/Getty Images Space and Space Technology

What Does Space Smell Like? The final frontier smells a lot like a Nascar race-a bouquet of hot metal, diesel fumes and barbecue. The source? Dying stars, mostly. Astro Whiff ~ Space is full of smells, but mostly the burning odor of hydrocarbons. Space is full of smells, but mostly the burning odor of hydrocarbons. IMAGE BY NASA/Scott Kleinman/Getty Images Space and Space Technology

Voyager 1 Discovers Bizarre and Baffling Region at Edge of Solar System “I’m convinced that nature is far more imaginative than we are,”

Voyager 1 Discovers Bizarre and Baffling Region at Edge of Solar System “I’m convinced that nature is far more imaginative than we are,”

Updated look at Milky Way’s rotation strengthens the case for dark matter | Ars Technica

Updated look at Milky Way’s rotation strengthens the case for dark matter | Ars Technica

Saturn Moon's Ocean may harbor hydrothermal Activity! This illustration depicts potential origins of methane found in the plume of gas and ice particles that sprays from Saturn's moon, Enceladus. Image credit: Southwest Research Institute

Saturn Moon's Ocean may harbor hydrothermal Activity! This illustration depicts potential origins of methane found in the plume of gas and ice particles that sprays from Saturn's moon, Enceladus. Image credit: Southwest Research Institute

Astronomers have discovered the fastest ever unbound star in our galaxy. The unbound star, named US708, is traveling at 1,200 kilometers per second -- the fastest speed ever recorded for such an object in our galaxy -- meaning it is not held back by gravity and will eventually leave the Milky Way.

Astronomers have discovered the fastest ever unbound star in our galaxy. The unbound star, named US708, is traveling at 1,200 kilometers per second -- the fastest speed ever recorded for such an object in our galaxy -- meaning it is not held back by gravity and will eventually leave the Milky Way.

An animation showing the orbits of several stars around Sgr A* at the core of the Milky Way, from 1995 to 2011. Image Credit: Keck/UCLA Galactic Center Group/Andrea Ghez et al.

An animation showing the orbits of several stars around Sgr A* at the core of the Milky Way, from 1995 to 2011. Image Credit: Keck/UCLA Galactic Center Group/Andrea Ghez et al.

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