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.
Written by Tony Phillips
Washington, D.C. – Today, after a decade-long journey chasing its target, the European Space Agency’s Rosetta probe, carrying three NASA instruments, became the first spacecraft to rendezvous with a comet, 67P/Churyumov-Gerasimenko.
“After 10 years, five months and four days travelling towards our destination, looping around the sun five times and clocking up 6.4 billion kilometers, we are delighted to announce finally we are here,” said Jean-Jacques Dordain, ESA’s director General.
Clarksville, TN – Clarksville Gas and Water has turned off water service on Cynthia Drive from Dover Road to Inver Road to repair a water main leak. The work is anticipated to be finished by approximately 3:30 p.m.
The road will be open to traffic.
An exercise in homelessness.
I just had a thought: when I was a kid, I spent a lot of time standing in the corner, and now I’m standing on the corner. Some things just make you go hmm.
Well, you’ll be glad to know I didn’t have to buy a flashlight because two sweet ladies each brought me one—one is bigger, so I can use it in my camp, and the other is smaller and will fit in my backpack.
NASA’s Mars Reconnaissance Orbiter discovers evidence that Gullies on Mars are being created by Dry Ice
Written by Guy Webster
Pasadena, CA – Repeated high-resolution observations made by NASA’s Mars Reconnaissance Orbiter (MRO) indicate the gullies on Mars’ surface are primarily formed by the seasonal freezing of carbon dioxide, not liquid water.
The first reports of formative gullies on Mars in 2000 generated excitement and headlines because they suggested the presence of liquid water on the Red Planet, the eroding action of which forms gullies here on Earth.
Written by Tony Phillips
Washington, D.C. – Scientists analyzing data from NASA’s Cassini mission have firm evidence of an ocean inside Saturn’s largest moon, Titan, which might be as salty as the Earth’s Dead Sea. The findings are published in this week’s edition of the journal Icarus.
“This is an extremely salty ocean by Earth standards,” said the paper’s lead author, Giuseppe Mitri of the University of Nantes in France. “Knowing this may change the way we view this ocean as a possible abode for present-day life, but conditions might have been very different there in the past.”
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