Written by DC Agle
Pasadena, CA – A camera aboard the European Space Agency’s Philae lander snapped this “selfie” of one of the Rosetta spacecraft’s 52-foot-long (16-meter) solar arrays, with comet 67P/Churyumov-Gerasimenko hovering in the background some 10 miles (16 kilometers) away.
The image, taken by the Comet Infrared and Visible Analyser (CIVA), was taken on October 7th. Philae, which is connected to the Rosetta orbiter at this time, will make its descent to the surface of the comet on November 12th.
Written by Tony Phillips
Washington, D.C. – NASA’s extensive fleet of science assets, particularly those orbiting and roving Mars, have front row seats to image and study a once-in-a-lifetime comet flyby on Sunday, October 19th.
Comet C/2013 A1, also known as comet Siding Spring, will pass within about 87,000 miles (139,500 kilometers) of the Red Planet — less than half the distance between Earth and our moon and less than one-tenth the distance of any known comet flyby of Earth.
Written by DC Agle
Pasadena, CA – The four images that make up a new montage of comet 67P/Churyumov-Gerasimenko were taken on September 26th, 2014 by the European Space Agency’s Rosetta spacecraft. At the time, Rosetta was about 16 miles (26 kilometers) from the center of the comet.
In the montage, a region of jet activity can be seen at the neck of the comet. These jets, originating from several discrete locations, are a product of ices sublimating and gases escaping from inside the nucleus.
Written by DC Agle/Guy Webster
Pasadena, CA – The European Space Agency’s Rosetta mission will deploy its lander, Philae, to the surface of comet 67P/Churyumov-Gerasimenko on November 12th.
Rosetta is an international mission spearheaded by the European Space Agency with support and instruments provided by NASA.
Philae’s landing site, currently known as Site J, is located on the smaller of the comet’s two “lobes,” with a backup site on the larger lobe. The sites were selected just six weeks after Rosetta’s August 6th arrival at the comet, following the spacecraft’s 10-year journey through the solar system.
Written by Izumi Hansen and Elizabeth Zubritsky
Greenbelt, MD – NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft is nearing its scheduled September 21st insertion into Martian orbit after completing a 10-month interplanetary journey of 442 million miles (711 million kilometers).
Flight Controllers at Lockheed Martin Space Systems in Littleton, Colorado, will be responsible for the health and safety of the spacecraft throughout the process. The spacecraft’s mission timeline will place the spacecraft in orbit at approximately 6:50pm PDT (9:50pm EDT).
Written by DC Agle and Dwayne Brown
Pasadena, CA – The European Space Agency’s Rosetta’s lander, Philae, will target Site J, an intriguing region on comet 67P/Churyumov-Gerasimenko that offers unique scientific potential, with hints of activity nearby, and minimum risk to the lander compared to the other candidate sites.
The 220-pound (100-kilogram) lander is scheduled to reach the surface on November 11th, where it will perform in-depth measurements to characterize the nucleus. Rosetta is an international mission spearheaded by the European Space Agency with support and instruments provided by NASA.
NASA Instrument “Alice” aboard Rosetta Orbiter has sent first data back to Earth about Comet 67P/Churyumov-Gerasimenko
Written by DC Agle
Pasadena, CA – A NASA instrument aboard the European Space Agency’s (ESA’s) Rosetta orbiter has successfully made its first delivery of science data from comet 67P/Churyumov-Gerasimenko.
The instrument, named Alice, began mapping the comet’s surface last month, recording the first far-ultraviolet light spectra of the comet’s surface. From the data, the Alice team discovered the comet is unusually dark — darker than charcoal-black — when viewed in ultraviolet wavelengths. Alice also detected both hydrogen and oxygen in the comet’s coma, or atmosphere.
Written by Jessica Nimon
Houston, TX – The green stuff that clouds up fish tanks – it’s not just an aesthetic annoyance. In fact, if you’ve been watching recent news of algal bloom concerns in Lake Erie, you know that the right conditions for algae can lead to contamination of local water sources, potentially impacting aquatic life and humans.
What you might not have known is that among the resources to help study this problem you will find the International Space Station’s Hyperspectral Imager for the Coastal Ocean (HICO).
Written by Alan Buis
Pasadena, CA – About 60 percent of California is experiencing “exceptional drought,” the U.S. Drought Monitor’s most dire classification. The agency issued the same warning to Texas and the southeastern United States in 2012. California’s last two winters have been among the driest since records began in 1879. Without enough water in the soil, seeds can’t sprout roots, leaves can’t perform photosynthesis, and agriculture can’t be sustained.
Currently, there is no ground- or satellite-based global network monitoring soil moisture at a local level. Farmers, scientists and resource managers can place sensors in the ground, but these only provide spot measurements and are rare across some critical agricultural areas in Africa, Asia and Latin America.
NASA reports Rosetta Spacecraft takes new image of Comet 67P/Churyumov-Gerasimenko showing surface details
Written by DC Agle
Pasadena, CA – A new image of comet 67P/Churyumov-Gerasimenko shows the diversity of surface structures on the comet’s nucleus.
It was taken by the Rosetta spacecraft’s OSIRIS narrow-angle camera on August 7th, 2014. At the time, the spacecraft was 65 miles (104 kilometers) away from the 2.5-mile-wide (4-kilometer) nucleus.
In the image, the comet’s head (in the top half of the image) exhibits parallel linear features that resemble cliffs, and its neck displays scattered boulders on a relatively smooth, slumping surface.
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