Okay that’s a bit of a stretch but if you could see what budgies see – not so much.
A couple weeks ago we talked about not fully understanding the effects of ultraviolet lighting on our birds. Something that not a lot of us including myself fully understand.
Leave it to NASA to set the record straight on the correlation between parrots and the center of our galaxy. Admitted science geek that I am, lots of interesting content crosses my desktop daily.
Rummaging through the archives of Science Magazine there’s an article from January 2002 entitled ”Fluorescent Signaling in Parrots” by Katherine Arnold At the University of Glasgow.
About a week later in the Journal of Nature you’ll find reports on the fluorescence that has been seen in the Galactic Center in an article by astronomer Q Daniel Wayne of the University of Massachusetts, Amherst.
The first article explains how ultraviolet light is absorbed by budgies (as well as other parrots) feathers on the crown and the cheeks and then the light gets re-emitted – as yellow light which is a longer wavelength.
Figure 1. Budgerigar’s head (A) under white light and (B) under UV illumination to induce yellow fluorescence. (C) Crown irradiated with UV light only (dashed line), resulting in human visible fluorescent emission (solid line). (D) Normalized visual difference between the emission spectrum of plumage, measured as radiant emission from feathers (solid line) and the spectral sensitivities of the four single cones classes of the budgerigar’s retina (dashed lines) (4). (Credit: K.Arnold et al., Science, 295, 92)
Basically what Ms. Arnold found was that both boy and girl budgies used the fluorescence of birds of the opposite sex and their glowing feathers that fluoresced in a light spectrum range that neither you nor I can see as an indicator for the quality of a possible mate.
Going back to the second story the geeky science astronomer guys and gals using pics that mere mortals have no access to because they have the Chandra X-ray Observatory to play with and made really cool images of the Milky Way Check it out!
This Chandra image exposes a wealth of exotic objects and high-energy features at the center of our galaxy, the Milky Way. In this new and deep image from Chandra, red represents lower-energy X-rays, green shows the medium range, and blue indicates the higher-energy X-rays.
Hundreds of small dots show emission from material around black holes, neutron stars and white dwarfs. A supermassive black hole — some four million times more massive the Sun — resides within the bright, blue-white region on the right.
The diffuse X-ray light comes from gas heated to millions of degrees by outflows from the supermassive black hole, winds from giant stars, and stellar explosions.
This 400 by 900 light-year mosaic of several Chandra images of the central region of our Milky Way galaxy reveals hundreds of white dwarf stars, neutron stars, and black holes bathed in an incandescent fog of multimillion-degree gas.