glow | Common News Update

Jun152020 by adminNo Comments

Mars: Green glow detected on the Red Planet

Science

Scientists have identified a green light in the atmosphere of Mars.A similar glow is sometimes seen by astronauts on the space station when they look to the Earth's limb.The glow comes from oxygen atoms when they're excited by sunlight.The phenomenon has long been predicted to occur on other planets, but the Trace Gas Orbiter (TGO) - a joint European-Russian satellite at Mars - is the first to make the observation beyond Earth. "It's a nice result," said Dr Manish Patel from the UK's Open University. "You'd never plan a mission to go look for this kind of thing. Today, we have to be very clear about the science we're going to do before we get to Mars. But having got there, we thought, 'well, let's have a look'. And it worked."To ...

Tiny Brazilian frogs glow in the dark — under a UV lamp

Science

March 29 (UPI) -- While studying the mating calls of pumpkin toadlets in the Brazilian rainforest, biologists realized the tiny frogs were deaf to their own songs. Further investigation revealed an alternate mode of communication, glow-in-the-dark bones. When scientists studied the miniature Brazilian frogs under an ultra-violet lamp, they found glowing patterns across the heads and backs of the tiny reptiles. "The fluorescent patterns are only visible to the human eye under a UV lamp," Sandra Goutte, an evolutionary biologist and researcher at New York University Abu Dhabi, said in a news release. "In nature, if they were visible to other animals, they could be used as intra-specific communication signals or as reinforcement of their aposematic coloration, warning potential predators of...

Hubble captures glow of giant galaxy cluster

Science

April 13 (UPI) -- A new image from the Hubble Space Telescope showcases a massive galaxy cluster, a web of thousands of galaxies tied together by the tug of gravity.The galaxy cluster featured in the image is named PLCK G308.3-20.2. Like an ecosystem full of biodiversity, the cluster is home to wide range of galaxies -- all different types, shapes and sizes.This particular galaxy cluster is situated 5 billion light-years away from Earth.As recently as a few decades ago, astronomers thought galaxy clusters were the largest structures in the universe, but in the 1980s, scientists realized galaxy clusters were organized into structures called superclusters.Superclusters are made of groups of clusters that can stretch hundreds of millions of light-years across. Some superclusters cover as much...