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Topic: Hydrazine
Scientists had figured out that the bright areas were deposits made mostly of sodium carbonate – a compound of sodium, carbon, and oxygen. «Read the rest of this article» Sections: Technology | No Comments
NASA to use CubeSat with Infrared Lasers to search the Moon’s Craters for Ice
Once excavated, it can be melted and purified for drinking and used for rocket fuel. But how much water is there on the Moon, and where might we find it? ![]() This artist’s concept shows the briefcase-sized Lunar Flashlight spacecraft using its near-infrared lasers to shine light into shaded polar regions on the Moon to look for water ice. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA to test Planetary Defense Technology against Asteroid in 2022
The asteroid poses no threat to Earth and is an ideal test target: measuring the change in how the smaller asteroid orbits about the larger asteroid in a binary system is much easier than observing the change in a single asteroid’s orbit around the Sun. «Read the rest of this article» Sections: Technology | No Comments
NASA’s Dawn spacecraft runs out of fun, mission endsNASA’s Jet Propulsion Laboratory
Dawn missed scheduled communications sessions with NASA’s Deep Space Network on Wednesday, October 31st, and Thursday, November 1st, 2018. After the flight team eliminated other possible causes for the missed communications, mission managers concluded that the spacecraft finally ran out of hydrazine, the fuel that enables the spacecraft to control its pointing. ![]() This photo of Ceres and the bright regions of Occator Crater was one of the last views NASA’s Dawn spacecraft transmitted before it completed its mission. This view, which faces south, was captured on Sept. 1 at an altitude of 2,340 miles (3,370 kilometers) as the spacecraft was ascending in its elliptical orbit. (NASA/JPL-Caltech/UCLA/MPS/DLR/IDA) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Dawn spacecraft nears Mission’s EndNASA’s Jet Propulsion Laboratory
Dawn’s mission was extended several times, outperforming scientists’ expectations in its exploration of two planet-like bodies, Ceres and Vesta, that make up 45 percent of the mass of the main asteroid belt. Now the spacecraft is about to run out of a key fuel, hydrazine. When that happens, most likely between mid-September and mid-October, Dawn will lose its ability to communicate with Earth. It will remain in a silent orbit around Ceres for decades. ![]() Artist’s concept of NASA’s Dawn spacecraft orbiting dwarf planet Ceres. (NASA/JPL-Caltech/UCLA/MPS/DLR/IDA) «Read the rest of this article» Sections: News | No Comments
NASA’s Dawn Spacecraft set to end 11-year MissionNASA’s Jet Propulsion Laboratory
Within a few months, Dawn is expected to run out of a key fuel, hydrazine, which feeds thrusters that control its orientation and keeps it communicating with Earth. When that happens, sometime between August and October, the spacecraft will stop operating, but it will remain in orbit around dwarf planet Ceres. Dawn is the only spacecraft to orbit two deep-space destinations. It has given us new, up-close views of Ceres and Vesta, the largest bodies between Mars and Jupiter. ![]() This mosaic of Cerealia Facula in Occator Crater is based on images obtained by NASA’s Dawn spacecraft in its second extended mission, from an altitude as low as about 21 miles (34 kilometers). (NASA/JPL-Caltech/UCLA/MPS/DLR/IDA) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Dawn Spacecraft to study Dwarf Planet Ceres from Higher OrbitWritten by Elizabeth Landau
Dawn has delivered a wealth of images and other data from its current perch at 240 miles (385 kilometers) above Ceres’ surface, which is closer to the dwarf planet than the International Space Station is to Earth. Now, the mission team is pivoting to consider science questions that can be examined from higher up. ![]() This artist concept shows NASA’s Dawn spacecraft above dwarf planet Ceres, as seen in images from the mission. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
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