There are approximately 10,000 separate galaxies in this tiny little piece of sky. Well, the good folks at NASA and the ESA have created a 3-D flythough simulation of the image, showing you what it would look like if you actually flew through this image! Now that you know how distances work in cosmology, all they had to do was measure the redshift of each galaxy and program it in. Tony Darnell narrates it, and I've embedded it for you right here! (You can start at the 2:53 mark if you want to skip the intro.) And remember, as you watch it, that each dot of light in this image is a galaxy, comparable to our own Milky Way, with nearly a trillion stars, only one of which is our own Sun.
What Makes the Universe Expand ?
No comments:
Post a Comment