Dan Brandon
Author's posts
Jun 13
Hubble’s bubble lights up the interstellar rubble
By Ethan Siegel When isolated stars like our Sun reach the end of their lives, they’re expected to blow off their outer layers in a roughly spherical configuration: a planetary nebula. But the most spectacular bubbles don’t come from gas-and-plasma getting expelled into otherwise empty space, but from young, hot stars whose radiation pushes against …
Jun 11
Light Pollution Hides Milky Way From 80 Percent Of North Americans
This view of North America as seen in Google Earth shows colored areas that denote levels of light pollution as detailed in the New World Atlas of Artificial Sky Brightness. Fabio Falchi et al./AAAS The luminous glow of light pollution prevents nearly 80 percent of people in North America from seeing the Milky Way in …
