Motivation Monday (on Tuesday): Rest and Recovery

When I was younger, I could get away with pulling an all-nighter, eating like garbage, and never taking a break.  As I get older, I find it’s much easier to burn out.  I feel the effects of a poor diet or a late night, and I need the extra time to recover at the end of a long week. Over the past few months, I’ve been getting used to waking up at 5am, going to the gym, and then going to work for the day.  I watch what I eat, generally avoid alcohol, and enjoy a few cups of delicious coffee...

Formation of Titans

Big stars tend to stick together.  They all require incredibly dense regions in which to form, but once they do, they do a great job of blowing away and ionizing any other gas and dust in the vicinity.  This is why nebulas in distant galaxies are great tracers of massive star formation.  The bigger and hotter the star, the more UV light it produces, the more it ionized a gas cloud, the more we see gorgeous nebula.  So it’s no surprise that when I look at the nebula below, I can guess that the central stars are huge, outweighing our...

Ancient Faint Galaxy Discovered

If you look up into the sky on a clear night, you would see thousands of stars.  There are surely many more that you would need a telescope to see.  But there are not stars everywhere.  You can zoom in further and further with bigger and bigger telescopes, until eventually you find gaps where you simply don’t see stars.  For a long time it was thought that the gaps were empty, until the Hubble telescope peered through the darkness by taking a 200 hour exposure of a supposedly empty patch of sky.  What it revealed was a universe full of...