Dark Gamma Ray Bursts

An artist’s conception of the environment around GRB 020819B based on ALMA observations. The GRB occurred in an arm of a galaxy in the constellation of Pisces (The Fishes). GRBs are huge explosions of a star spouting high-speed jets in a direction toward the observer. In a complete surprise, less gas was observed than expected, and correspondingly much more dust, making some GRBs appear as “dark GRBs”.

Gamma-ray bursts (GRBs) are intense bursts of extremely high energy observed in distant galaxies — the brightest explosive phenomenon in the Universe. Bursts that last more than a couple of seconds are known as long-duration gamma-ray bursts (LGRBs) and are associated with supernova explosions — powerful detonations at the ends of the lives of massive stars.

In just a matter of seconds, a typical burst releases as much energy as the Sun will in its entire ten-billion-year lifetime. The explosion itself is often followed by a slowly fading emission, known as an afterglow, which is thought to be created by collisions between the ejected material and the surrounding gas. However, some gamma-ray bursts mysteriously seem to have no afterglow — they are referred to as dark bursts. One possible explanation is that clouds of dust absorb the afterglow radiation.

  • More information: here

Credit: Bunyo Hatsukade(NAOJ), ALMA (ESO/NAOJ/NRAO)

Very Violet!

#UrbanDecay’s signature color is a vivid purple, and they’ve gone and made that into a gorgeous Afterglow blush and Revolution High-Color lipgloss.

If you are a fan of purple (rich purples are very flattering) you’ll be able to get hold of the new ranges from 11 June in Singapore!

Eyeshadow in Backfire - a deep burgundy with purple shift. This shade will be launched with a series of new creamy duochrome colors.
#Afterglow Blush in Obsessed (candy pink) and Bittersweet
#Revolution Lip Glosses in Big Bang (translucent plum with magenta sparkles) and Bittersweet
#eyeshadow in Bordello - mauve pink with gold sheen; this is not a new shade but I highly recommend this gorgeous shadow if you like pinky purply shades

#beautynews #cosmetics #blush #purple #violet #pink #sg #bblogger #udny

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