AstroCapsule (2nd-9th August, 2015)

I decided to start a news report of sorts where every Sunday I post news on Astronomy that’s exciting and happened through the week.


1.   Hubble Finds Evidence Of Galaxy Star Birth Regulated By Black Hole Fountain:
This discovery explains the mystery of why many elliptical galaxies do not have a higher rate of star birth even though there is plenty of gas present. The space telescope of NASA’s knows as the Hubble captured blue stars forming around the jets of black holes which are located in the centre of extra-large elliptical galaxies. The scientist have identified this case as that of controlled development. In this, the cycle of heating and cooling of gases keep the star birth at bay.  http://www.astronomy.com/news/2015/08/hubble-finds-evidence-of-galaxy-star-birth-regulated-by-black-hole-fountain#
 
2.   Astronomers Discover Enormous Protogalaxy 10 Billion Light Years Away:
A protogalaxy is a large mass of gas from which galaxies are thought to develop from. This particular protogalaxy is 4, 00,000 light years across—around 4 times the size of our home galaxy. It is located between two quasars {pronounced: kwey-zaar/kwey-saar}. Quasars are large and remote celestial object that emit huge amounts of energy and light. If you look at a quasar through a telescope you might not recognise it, as it looks like a star, but it is absolutely gigantic. So gigantic that it contains massive black holes [note: I said black holes, as in plural]. In fact, it is belied that quasars represent a stage in the evolution of formation of galaxies.
3.   Scientists Find Evidence For Ancient Lake In Meridiani Planum On Mars:

A team of scientists from the University of Colorado have discovered evidence of an ancient lake that likely represents some of the last potentially habitable surface water ever to exist on the Red Planet. The lake is an 18 square mile chlorine salt deposit. It is located in Meridiani Planum which is where NASA’s Opportunity rover is. According to to the magnitude and thickness of the salt, calculations were made. the result of which is: it was possible that there were microorganisms in existence. So… yeah… they will have to check that out.
4.  Astronomers See Colourful ‘Owl’ In The Sky:

You must be thinking “owl?!” That’s right I said owl but not the animal. Owl a nickname for the little known nebula called ESO 378-1. This nebula is located in the constellation Hydra which is around 3,250 light years away and has a diameter of around 4 light years. I just had to include this in the AstroCapsule because I think the picture is absolutely stunning.