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Latest Noctilucent cloud Stories

NASA's AIM Mission Unlocks The Secrets Of Noctilucent Clouds
2014-04-17 08:10:25

[ Watch the Video: Unexpected Teleconnections in Noctilucent Clouds ] April Flowers for redOrbit.com - Your Universe Online When you think about the North and South poles, they seem to be worlds apart. They are separated by four oceans, six continents, and more than 12,000 nautical miles. New data from NASA's Aeronomy of Ice in the Mesophere (AIM) spacecraft suggests, however, that they aren't as far apart as you might think. AIM has revealed "teleconnections" in the planet's...

noctilucent clouds
2014-04-11 10:36:00

Karen C. Fox, NASA's Goddard Space Flight Center First spotted in 1885, silvery blue clouds sometimes hover in the night sky near the poles, appearing to give off their own glowing light. Known as noctilucent clouds, this phenomenon began to be sighted at lower and lower latitudes -- between the 40th and 50th parallel -- during the 20th century, causing scientists to wonder if the region these clouds inhabit had indeed changed -- information that would tie in with understanding the weather...

Noctilucent Clouds In Antarctica Being Studied Closely By NASA's AIM Mission
2013-12-24 11:17:05

[ Watch the Video: ScienceCasts: Electric-Blue Clouds Appear Over Antarctica ] Lee Rannals for redOrbit.com - Your Universe Online A group of electric-blue clouds are hovering over Antarctica right now, and NASA’s AIM spacecraft is helping scientists better understand them. Noctilucent clouds (NLCs) are the Earth’s highest clouds, forming at the edge of space, 51 miles above the Earth’s surface. From a plane, the clouds appear as slivers of light streaking across the sky,...

NASA AIM Satellite Spots First Noctilucent Clouds Of 2013
2013-06-09 09:08:50

redOrbit Staff & Wire Reports — Your Universe Online Noctilucent clouds (NLCs), tenuous cloud-like phenomena that form every summer in the skies above the North Pole, are forming earlier than usual, NASA officials confirmed on Friday. According to the US space agency, NLCs are formed when “ice crystals begin to cling to the smoky remains of meteors, forming electric-blue clouds with tendrils that ripple hypnotically against the sunset sky.” These clouds, which...

While Comet ISON’s eagerly anticipated encounter with the sun won’t even happen until November, it seems as though the fireball is already prepping a special encore performance for stargazers here on Earth.
2013-04-20 06:54:26

[WATCH VIDEO: Comet ISON Meteor Shower] redOrbit Staff & Wire Reports - Your Universe Online While Comet ISON´s eagerly anticipated encounter with the sun won´t even happen until November, it seems likely the fireball is already prepping a special encore performance for stargazers here on Earth. In January, the US space agency´s Swift spacecraft observed the comet ISON while it was still near the orbit of Jupiter. Even then, it had already become extremely...

Noctilucent Clouds Observed By NASA Sounding Rocket
2013-04-04 14:55:35

NASA A constant stream of space debris flows toward Earth from the rest of the solar system. Large meteors can sometimes survive the intense friction and heat upon entering Earth´s atmosphere, but by and large the meteors evaporate and reform into tiny particles that are left to whiz through the atmosphere. Such particles are so light and so ubiquitous that scientists refer to them as smoke. Tracking how this smoke swirls around Earth has implications for understanding weather and...

Shuttle Exhaust Reveals More About Atmospheric Winds
2012-08-29 08:07:03

April Flowers for redOrbit.com - Your Universe Online The last space shuttle flight took place on July 8, 2011, sending Atlantis into space for its thirty-third, and final mission. This flight marked the end of a 20-year space shuttle program. As Atlantis reached a height of about 70 miles over the east coast of the U.S., it released 350 tons of water vapor exhaust. The vapor plume spread and floated on air currents high in the Earth's atmosphere, crossing through the observation paths...

Meteor Smoke Helps Form Noctilucent Clouds
2012-08-08 13:33:19

Watch the Video : [ Meteor Smoke Makes Strange Clouds ] Lee Rannals for redOrbit.com - Your Universe Online Bits of "meteor smoke" have been detected in a noctilucent cloud (NLC), supporting an already existing theory. Noctilucent clouds were first noticed in 1885 about two years after the eruption of Krakatoa. Ash from the volcano caused great sunsets, making it a global past time for people to sit and look up at the sky at dust. A German named T.W. Backhouse, who is credited...

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2011-07-10 18:57:07

When noctilucent clouds (NLCs) first appeared in the 19th century, they were a high-latitude phenomenon. You had to travel toward the poles to see their electric-blue glow. Not anymore. Just this past weekend, these beautiful, "night-shining" clouds spilled over the Canadian border into the lower United States as far south as Denver, Colorado.In recent years, a NASA spacecraft called AIM (Aeronomy of Ice in the Mesosphere) has spotted the clouds appearing ever lower in latitudes, but just why...

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2011-04-19 13:25:00

High up in the sky near the poles some 50 miles above the ground, silvery blue clouds sometimes appear, shining brightly in the night. First noticed in 1885, these clouds are known as noctilucent, or "night shining," clouds. Their discovery spawned over a century of research into what conditions causes them to form and vary "“ questions that still tantalize scientists to this day. Since 2007, a NASA mission called Aeronomy of Ice in the Mesosphere (AIM) has shown that the cloud...


Word of the Day
cacodemon
  • An evil spirit; a devil.
  • A nightmare.
  • In astrology, the twelfth house of a scheme or figure of the heavens: so called from its signifying dreadful things, such as secret enemies, great losses, imprisonment, etc.
'Cacodemon' comes from a Greek term meaning 'evil genius.'
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