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Icesat 2

All articles tagged with #icesat 2

science-and-technology3 years ago•5 min saved

Mysterious Green Light Over Japan Not a Meteor, NASA Data Shows.

A strange green light seen over Japan was captured on video by astronomer Daichi Fujii, who later discovered that it was caused by the Ice, Cloud, and Land Elevation Satellite 2 (ICESat-2) passing overhead. ICESat-2 uses lasers to measure the thickness of sea ice, ice sheet elevation, and other topographical features. The satellite's lasers had never been caught on film before, but Fujii's cameras were in the perfect position to capture the green beam as it scattered off clouds. NASA satellite data helped to solve the mystery of the green light.

via The Debrief|

#green-light #icesat-2 #japan

spaceflight3 years ago•3 min saved

The Mystery of Mysterious Green Lasers Finally Solved by NASA

Motion-detecting cameras outside a museum in Japan captured green laser beams in the sky, which were later identified as being emitted by NASA's ICESat-2 satellite. The satellite uses lasers and a lidar sensor to measure ice sheet elevation, sea ice thickness, and land topography on Earth. The laser beams are typically difficult to spot from Earth, but on this occasion, the clouds scattered the laser light, making it visible to the museum's cameras. This is the first time the satellite's laser beams have been caught on camera.

via Space.com|

#icesat-2 #japan #laser-beams

science-and-technology3 years ago•3 min saved

The Chilling Explanation Behind Mysterious Green Lasers Spotted Near Mount Fuji.

Motion-sensing cameras set up to capture meteors instead caught the laser beams of NASA’s ICESat-2 satellite as it passed over Japan. It’s the first time the ICESat-2 team has seen footage of the lasers at work in orbit. ICESat-2 was launched in September 2018 with a mission to use laser light to measure the height of Earth’s ice, water, and land surfaces from space. The laser instrument, called a lidar, fires 10,000 times a second, sending six beams of light to Earth. It precisely times how long it takes individual photons to bounce off the surface and return to the satellite.

via SciTechDaily|

#clouds #icesat-2 #japan

space3 years ago•1 min saved

"Japanese Astronomer Captures NASA's Mysterious Green Lasers"

Japanese astronomer Daichi Fujii recorded green pulsing lines shooting across the cloudy night sky on September 16, 2022, which were later identified as NASA's Ice, Cloud and Land Elevation Satellite 2 (ICESat-2) using motion-detecting cameras. It's the first time the satellite's green laser pulses have been spotted from the Earth's surface. The satellite uses laser light to get an exact measurement of the height of the Earth's ice, water, and land surfaces. The laser fires 10,000 times a second, shooting six beams of light to Earth.

via Futurism|

#astronomy #green-lasers #icesat-2

science3 years ago•2 min saved

NASA's Mysterious Green Laser Lights Over Mount Fuji Finally Explained

Green laser lights spotted over Mount Fuji in 2022 were caused by NASA's ICESat-2 satellite, which shoots 10,000 laser pulses a second to measure the elevation of ice sheets, glaciers, and sea ice. The lasers were visible due to rare weather conditions, with two thin layers of clouds present over Japan, allowing for the light to become visible. This is the first time the ICESat-2 team has seen footage of its lidar instrument in action. The laser light is not harmful and has roughly the same strength as a camera flash from 30 meters away.

via IFLScience|

#clouds #green-laser-lights #icesat-2

science-and-technology3 years ago•2 min saved

Unraveling the Mystery of NASA's Green Laser Beams

A Japanese astronomer, Daichi Fujii, captured footage of NASA's ICESat-2 satellite firing laser beams at Earth using a homemade motion detection camera. The satellite uses lidar to measure the height of Earth's ice, water, and land surfaces from space. The laser instrument fires 10,000 times a second, sending six beams to Earth to measure how long it takes individual photons to bounce off the surfaces and come back to the satellite. The footage marks the first time that the ICESat-2 team has ever seen footage of the satellite's green laser beams from Earth.

via PetaPixel|

#astronomy #icesat-2 #laser-beams

science-and-technology3 years ago•2 min saved

Japanese Astronomer Spots NASA's Mysterious Green Lasers in Action

Japanese astronomer Daichi Fujii captured footage of three green lasers streaking across the sky, which he later identified as coming from NASA's Ice, Cloud and Land Elevation Satellite 2 (ICESat-2). The satellite, which measures the height of Earth's surfaces, fires lasers 10,000 times per second. The lasers were visible due to unique atmospheric conditions that scattered the light enough to make it visible to Fujii's cameras. This is the first time the team has seen footage of the instrument's lasers pulsing through the sky.

via Gizmodo|

#astronomy #green-lasers #icesat-2

science-and-technology3 years ago•2 min saved

Mysterious Green Lasers from NASA Observed by Japanese Astronomer

Japanese astronomer Daichi Fujii captured footage of three green laser pulses streaking across the sky, which he later identified as coming from NASA's ICESat-2 satellite. The satellite is used to measure the height of Earth's surfaces and fires lasers 10,000 times per second. This is the first time the team has seen footage of the instrument's lasers pulsing through the sky. The lasers require unique atmospheric conditions to be spotted, and the clouds over Hiratsuka City Museum that night scattered the laser light enough to make it visible to Fujii's cameras.

via Yahoo News|

#astronomy #green-lasers #icesat-2