The ever-present fog of energetic gamma rays permeating the universe isn’t created by what astronomers expected, new observations from NASA’s Fermi Gamma-ray Space Telescope reveal, leaving scientists with a new cosmic mystery to solve.
The sky glows in gamma rays even far away from well-known bright sources, such as pulsars and gas clouds within our own Milky Way galaxy or the most luminous active galaxies. Conventionally, astronomers thought that the accumulated glow of active galactic nuclei — black hole-powered jets emanating from active galaxies — accounted for most of this gamma-ray background.
“Thanks to Fermi, we now know for certain that this is not the case,
Apparently, there is a strange security bug in Windows XP whereby some web sites will ask you to press the F1 Key, and if you do, you are screwed.
Continue reading Windows Users: Do Not Press Just Any Key!
I and the Bird #120: March is up at Sand Creek Almanac, which is Deb’s blog, and it’s from Minnesota! So, this edition is special because it is from my neighborhood, and because it is the Dozenteenth Edition!
Click here to visit I and the Bird Web Carnival.