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| The Boomerang Nebula, called the “coldest place in the Universe,” reveals its true shape with ALMA. |
The coldest place in the universe was found 5,000 light years away from planet earth in the constellation Centaurus. It has a ghost shape for and its said to be colder than the faint afterglow of the Big Bag being it one degree Kelvin (minus 458 degrees Fahrenheit). This nebula was originally observed by ground-based telescope but it was identified as the coldest place in the universe by the Atacama Large Millimeter/submillimeter Array (ALMA) by astronomers. With ALMA they determined the true shape and the properties of the nebula and revealed the whole story other from the picture taken by the Hubble Space Telescope.
The object found, called Boomerang nebula, is actually a planetary nebulae that is actually the end-of-life-phases of the stars just like our sun. What remains in their center are white dwarf stars that emit ultraviolet radiation which causes gas and a glow that lets it bright different colors. By now the pre-planetary nebula is seen by starlight which only reflects dust grains not such a big glow. The color emitted is also a character of the coldness expanding in the nebula by a gas. This information has been seen for millions of miles away by the ALMA and the Hubble telescope and many attributes and its properties can be known by this.
It's impressive how technology has evolved to the point were we can see objects that are 5,000 light years away! Personally I think this is incredible and it's amazing how we are discovering new things in the vast universe in which we know very little about. Very similar to the sea, we don't really know what is out there and because space can be very terrifying these new inventions can help the world know a little bit more about the place we live in, the universe. The nebula has very pretty colors, one of the reasons this article was very alluring but also the fact that it's the coldest place in the universe is really interesting and I just had to click and see what the fuzz was all about. I'm glad I got to know more about nebulas and learned about planetary nebulae.
Ghostly shape of 'coldest place in the universe' revealed
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