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spaceplasma:

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)

  • Track Name

    See You Tomorrow (Music Box)

  • Album

    How to Train Your Dragon

  • Artist

    Original: John Powell; Edit: wan4life

jackthevulture:

pitchpipestarkid:

wan4life:

                                           ”See you tomorrow!”

I DIDN’T KNOW I WANTED THIS UNTIL NOW. THANK YOU VERY MUCH FOR A PERFECT ENDING TO A PERFECT DAY.

MUSIC BOX VERSIONS ARE USUALLY REALLY SLOW AND CALM AND THIS ONES JUST A PARTY LIKE THIS IS WHAT FAIRIES DANCE TO

micdotcom:

Watch: One woman’s badass athletic achievement is silencing sexists across the Web 

Will American Ninja Warrior crown its first female champion at the top of Mount Midoriyama?

Kacy Catanzaro became the first woman ever to complete a city finals course, in Dallas, and the first woman to ever make it to the finals in Las Vegas. If she manages to conquer Mount Midoriyama she could win the $500,000 prize and the title of American Ninja Warrior.

Watch the full video | Follow micdotcom

This woman will save the world

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