“I love Pau like a brother. I really do. I want him to dominate like I know he can. I want him to dig in and be determined, not discouraged. We should go to him more on the post because he can dominate from there as he has to the tune of two rings. I’m sure we will adjust and figure out a balance when he comes back healthy.” —Kobe Bryant on Pau Gasol
"This dog just appeared out of nowhere and followed us for an entire week during our trekking trip in the Himalayan outback…When I decided to get up at 4 a.m. to climb the next 5000 m peak…he accompanied me as well. On the top he was sitting for the entire 30 minutes on this place"
Eerie airglow over Tibet
The combination of dark skies and cold air over the plateau known as ‘the roof of the world’ has produced conditions that astronomers refer to as excellent seeing, free of the influence of city lights and variable refraction of incoming light by layers of different temperature air in the atmosphere. The good conditions that result helped reveal a subtle effect, often hard to see from the ground, known as airglow.
They superficially resemble a weak aurora, but unlike their more intense cousins, they are not focussed towards the poles by our planet’s magnetic field, and can therefore be seen in good conditions from any latitude on Earth. The two kinds of glow result from excitation of atoms at the borders of our thin airy envelope by solar energy, but aurorae are caused by high energy particles in the solar wind hitting our world, particularly in the huge solar explosions known as coronal mass ejections. Airglow on the other hand is low intensity excitation caused by the higher energy components of ordinary sunlight such as short wave UV and X-rays. The glow occurs as atoms in the atmosphere combine and separate under theinfluence oof the energy, producing a chemistry induced photonic glow.
In this case, a supercell storm on the other side of the Himalayan barrier in Bangladesh created these huge glowing ripples of airglow, that were shaped into these wavy bullseyes by gravity waves of alternating high and low air pressure in the atmosphere.
Most of our posts are not reaching you in your news feed due to fb’s filtering system. If you wish to enjoy our posts more often, use the following for information on how to go about it: http://tinyurl.com/qgwac8k.
Image credit: Jeff Dai via APOD