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Aurora borealis
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This picture of a green and red aurora was taken on September 26, 2013, from the International Space Station. The colours of the aurora borealis depend on which atoms the solar storm excites. Green auroras appear when charged particles from the solar wind crash with oxygen atoms in Earth’s atmosphere and produce green photons; red auroras occur when the particles collide with nitrogen atoms or when there are lower-energy oxygen collisions, producing red photons.
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2585 |
duddy |
10 years ago |
Are street lamps a thing of the past?
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Hamish Scott from the UK has invented the Starpath, which is a special luminescent coating for roads and paths. The multi-layered, organic material collects and stores energy from light during the day and releases it as a blueish glow at night that can last for 16 hours. The technology is now being trialled at Christ's Pieces Park in Cambridge, and if successful, could slash electricity bills, plus it's 100% recyclable.
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5460 |
duddy |
10 years ago |
Albino alligator
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Bino, an albino alligator that lives at the Sao Paulo Aquarium in Brazil. Read more on albinism.
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5857 |
duddy |
10 years ago |
A new species of giant fish as been discovered
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The new species is member of the arapaima genus, which contains some of the world’s biggest freshwater fish that breathe air and weigh up to 200kg. Found in the central Amazon of Brazil, the new fish has been named Arapaima leptosoma and is the first new species of arapaima described since 1847.
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3943 |
duddy |
10 years ago |
A fascinating real-life optical illusion
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A fascinating optical illusion can be found at the southwestern tip of Mauritius Island. If seen from above, this part of the island seems to be melting into the ocean, forming a spectacular underwater waterfall. We owe this to a runoff of sand and silt deposits (the light-coloured portion of the water) and the downward pull of the receding waves.
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5888 |
duddy |
10 years ago |
A fascinating looking whale
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This is Migaloo, the albino white humpback whale. His name is derived from an Aboriginal word that means “white fella.” Migaloo is a favorite for whale watching enthusiasts. He is believed to be the only documented white humpback whale in the world. He was discovered in 1991 and quickly became popular with tourists and locals alike. Since then, sightings have been rare. He migrates from Antarctica to Australia on a yearly basis, and some years he slips by undetected. Most of these photos were taken in 2012 on Migaloo’s return to Antarctica. ...
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5099 |
duddy |
10 years ago |
A dancing spider
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Meet the peacock spider, it has the best dance moves you've ever seen.
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3893 |
duddy |
10 years ago |