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HQ Desktop wallpaper --ongoing thread-- *warning* memory/bandwidth killer
- Thread starter greygoose
- Start date
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JPEG Image 4,101.4 KB 6,143px × 3,054px
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Very nice.
If you see posts with red X's click on them anyway. Most of them are hot linked to the original photo.
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Witch Nebula Casts Starry Spell
This 2013 image taken by NASA’s Wide-Field Infrared Survey Explorer, or WISE, captures a nebula that looks like a witch screaming. Perhaps that imagined scream is a creation spell, for the Witch Hat nebula’s billowy clouds are a star nursery. We can see these clouds thanks to massive stars lighting them up; dust in the cloud is being hit with starlight, causing it to glow with infrared light, which was picked up by WISE’s detectors.
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This 2013 image taken by NASA’s Wide-Field Infrared Survey Explorer, or WISE, captures a nebula that looks like a witch screaming. Perhaps that imagined scream is a creation spell, for the Witch Hat nebula’s billowy clouds are a star nursery. We can see these clouds thanks to massive stars lighting them up; dust in the cloud is being hit with starlight, causing it to glow with infrared light, which was picked up by WISE’s detectors.
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Bioluminescent Termite Mound
The lights on this termite mound in Emas National Park, Brazil, are from tiny click beetle larvae (Pyrearinus termitilluminans), which glow from burrows on the outside. The larvae do not blink on and off like fireflies, but leave their lights on, hoping to attract flying insects (like winged termites & ants), which they then grab with their sharp mandibles. When conditions are right, some mounds can glow with the lights of dozens of these larvae, turning the structures into Seussian-looking Christmas trees. The adult beetles also bioluminesce - and are not necessarily safe from predation by the larvae.
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Waiting for Dinner
A tiny click beetle larva (Pyrearinus termitilluminans) glows from its burrow on the outside of a termite mound in Emas National Park, Brazil. The larvae do not blink on and off like fireflies, but leave their lights on, hoping to attract flying insects (like winged termites & ants), which they then grab with their sharp mandibles. When conditions are right, some mounds can glow with the lights of dozens of these larvae, turning the mounds into Seussian-looking Christmas trees. The adult beetles also bioluminesce - and are not necessarily safe from predation by the larvae.
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White-necked Jacobin La Minga Ecolodge, Colombia
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