Yep, this is my excuse for glorious photos of our galaxy. Astronomy is one of my keenest interests, and I just find the whole scale of what’s outside our atmosphere truly awe-inspiring. It sure puts my own human-scale worries into perspective. So here’s a few lesser know facts about the galaxy we call home (and don’t forget it’s only one of billions of galaxies). Yeah, the universe is a big place. Maybe don’t dwell on that too long, it can get uncomfortable.
1. The Milky Way is estimated to contain about 100 billion stars. Maybe more. Anyway, a lot of stars.
2. Not only is Earth rotating around the Sun but the Sun is rotating around the centre of our galaxy and the galaxy itself rotates. It’s enough to make you dizzy. Just as well we’re not outside, looking in.
3. In terms of scale, you know that light takes 8 minutes to get from the Sun to Earth, but did you know light takes 100,000 years to get across the Milky Way, the distance is so vast.
4. Over 1800 planets have now been discovered outside our Solar System. However, as it is estimated that there are over a billion in the Milky Way, we’ve got some way to go yet.
For more info, Nasa’s website is a great place to start. http://www.nasa.gov/