You would be forgiven if you thought this picture was a soap bubble in front of an astronomical picture. This is a picture of a planetary nebula that was overlooked until this month. Astronomers say it is either spherical or column-shaped, in which case the camera is looking down the barrel of the column. Records indicate that the nebula, officially named PN G75.5+1.7 and nicknamed the "Cygnus Bubble", was recorded sixteen years ago during the second Palomar Sky Survey, but was overlooked at the time because it was so faint. Link -Thanks, healthylivinggal83!
(image credit: Travis A. Rector/U of Alaska Anchorage/Heidi Schweiker/NOAO)
Comments (11)
And here I didn't realize there were so many hollow tubes holding up the Parthenon.
and they should have had sven. oh well!
never seen -51 before :O
It's -45f with the windchill right now.
The other day it was -61f with the windchill.
Perhaps the banana test should be the defining factor on closings...
Hot water trick is always fun
It sublimates. The hot liquid water breaks up into ice crystals and then much of that goes directly into a gas state. That part which doesn't falls as snow.
It's almost the same thing that happens when you hang wet clothes out in winter. They freeze, and then they dry as the ice goes from a solid directly to a gas without passing thru the water state.
Sublimation.
Neat huh?