starburst
esiegel | May 13, 2013"How is it they live for eons in such harmony - the billions of stars - when most men can barely go a minute without declaring war in their mind against someone they know?" -Thomas Aquinas
Welcome back to another Messier Monday here on Starts With a Bang! Each Monday, we take an in-depth look at one of the 110 deep-sky wonders -- all visible with a small telescope or even good binoculars -- that make up Charles Messier's original catalogue of non-cometary objects! Today, we're taking a look at a one-of-a-kind galaxy among the Messier objects, which just happens to be the (co-)first galaxy I…
esiegel | August 17, 2012"We don’t understand how a single star forms, yet we want to understand how 10 billion stars form." -Carlos Frenk
The Universe has been around for a long time: nearly 14 billion years, to the best of our knowledge. When it was very young, there were absolutely zero stars in it, while today, there are hundreds of billions of galaxies, each of which contains anywhere from a few billion to many trillions of stars.
Image credit: NASA, ESA, and the Hubble Heritage (STScI / AURA) - ESA / Hubble Collaboration
The galaxy shown above, NGC 2841, is very similar to our own Milky Way. Approximately the…