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Celebrating Hubble: A raging star

15 April 2015 Astronomy Now

As we celebrate 25 years of the Hubble Space Telescope, here’s another gem from the archives. The binary star system known as eta Carinae, part of the Trumpler 16 open cluster in the Carina Nebula.

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Mimas by Saturnshine

14 April 2015 Astronomy Now

Although we are used to seeing Saturn’s moons lit directly by the Sun, sometimes we can catch them illuminated by “Saturnshine.”

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Aurora over Icelandic lake

9 April 2015 Astronomy Now

On 15th March, a coronal mass ejection from the Sun launched a torrent of charged particles in the direction of Earth. The gaseous cloud collided with our planet’s magnetic field two days later, generating this glorious, shimmering auroral curtain over Iceland photographed by Carlos Gauna.

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Getting close to Iapetus

8 April 2015 Kerry Hebden

This two-tone, almost yin-yang like image of Iapetus, Saturn’s third largest moon, is the view Cassini was privilege to when it did its second closest approach of the satellite earlier this year.

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A dramatic starscape in the Southern Hemisphere

29 March 2015 Astronomy Now

This view in the southern constellation of Ara (The Altar) is a treasure trove of celestial objects. Star clusters, emission nebulae and active star-forming regions are just some of the riches observed in this region lying some 4000 light-years from Earth.