Topic: NASA’s Jet Propulsion Laboratory
Written by Guy Webster
Pasadena, CA – Observations by NASA’s Curiosity Rover indicate Mars’ Mount Sharp was built by sediments deposited in a large lake bed over tens of millions of years.
This interpretation of Curiosity’s finds in Gale Crater suggests ancient Mars maintained a climate that could have produced long-lasting lakes at many locations on the Red Planet.
“If our hypothesis for Mount Sharp holds up, it challenges the notion that warm and wet conditions were transient, local, or only underground on Mars,” said Ashwin Vasavada, Curiosity deputy project scientist at NASA’s Jet Propulsion Laboratory in Pasadena, California. “A more radical explanation is that Mars’ ancient, thicker atmosphere raised temperatures above freezing globally, but so far we don’t know how the atmosphere did that.”
NASA uses Keck Observatory telescopes to determine dust will likely not to block images of star’s Planets
Written by Whitney Clavin
Pasadena, CA – Planet hunters received some good news recently. A new study concluded that, on average, sun-like stars aren’t all that dusty. Less dust means better odds of snapping clear pictures of the stars’ planets in the future.
These results come from surveying nearly 50 stars from 2008 to 2011 using the Keck Interferometer, a former NASA key science project that combined the power of the twin W. M. Keck Observatory telescopes atop Mauna Kea, Hawaii.
Written by Whitney Clavin
Pasadena, CA – Researchers studying what appears to be a beefed-up version of our solar system have discovered that it is encased in a halo of fine dust. The findings are based on infrared data from NASA’s Spitzer Space Telescope and the European Space Agency’s Herschel Space Observatory, in which NASA is a partner.
The dusty star system, called HD 95086, is located 295 light-years from Earth in the constellation Carina. It is thought to include two belts of dust, which lie within the newfound outer dust halo.
Written by Alan Buis
Pasadena, CA – Five new NASA airborne field campaigns, including one managed by NASA’s Jet Propulsion Laboratory, Pasadena, California, will take to the skies starting in 2015 to investigate how long-range air pollution, warming ocean waters and fires in Africa affect our climate.
These studies into several incompletely understood Earth system processes were competitively selected as part of NASA’s Earth Venture-class projects. Each project is funded at a total cost of no more than $30 million over five years. This funding includes initial development, field campaigns and analysis of data.
Written by Elizabeth Landau/Preston Dyches
Pasadena, CA – Airships aren’t just powered balloon-like vehicles that hover above sporting events. Researchers at NASA’s Jet Propulsion Laboratory in Pasadena, California, are floating the idea that airships have potential for important scientific and commercial uses.
NASA is considering issuing a challenge for developing stratospheric airships that can break records in terms of duration of flight at high altitudes. The agency has issued a request for information for this contemplated “20-20-20 Airship Challenge.” Submissions will be accepted until December 1st.
NASA’s Soil Moisture Active Passive instrument looks to answer the question, “How does Weather influence Soil Moisture?”
Written by Carol Rasmussen
Pasadena, CA – Anyone who spends time outdoors knows that weather influences soil moisture — the moisture locked in soils that allows plants to grow — through temperature, wind and, of course, rain and snowfall. But in our complex, interlocking Earth system, there are almost no one-way streets. How does soil moisture influence weather in return?
NASA’s Soil Moisture Active Passive (SMAP) instrument may help answer that question. Scheduled for launch on January 29th, 2015, SMAP was built and will be operated by NASA’s Jet Propulsion Laboratory, Pasadena, California.
Written by Elizabeth Landau
Pasadena, CA – At one of the world’s deepest undersea hydrothermal vents, tiny shrimp are piled on top of each other, layer upon layer, crawling on rock chimneys that spew hot water. Bacteria, inside the shrimps’ mouths and in specially evolved gill covers, produce organic matter that feed the crustaceans.
Scientists at NASA’s Jet Propulsion Laboratory in Pasadena, California, are studying this mysterious ecosystem in the Caribbean to get clues about what life could be like on other planetary bodies, such as Jupiter’s icy moon Europa, which has a subsurface ocean.
Written by DC Agle
Pasadena, CA – A 3D image shows what it would look like to fly over the surface of comet 67P/Churyumov-Gerasimenko.
The image was generated from data collected by the Rosetta Lander Imaging System (ROLIS) aboard the European Space Agency’s Philae spacecraft during the descent to the spacecraft’s initial touchdown on the comet November 12th.
The stereographic image was generated using two images acquired by ROLIS when Philae was a little less than 2 miles (3 kilometers) from the surface.
Written by Preston Dyches
Pasadena, CA – Scientists have produced a new version of what is perhaps NASA’s best view of Jupiter’s ice-covered moon, Europa. The mosaic of color images was obtained in the late 1990s by NASA’s Galileo spacecraft. This is the first time that NASA is publishing a version of the scene produced using modern image processing techniques.
This view of Europa stands out as the color view that shows the largest portion of the moon’s surface at the highest resolution.
Written by Guy Webster
Pasadena, CA – NASA’s Curiosity Mars rover has completed a reconnaissance “walkabout” of the first outcrop it reached at the base of the mission’s destination mountain and has begun a second pass examining selected rocks in the outcrop in more detail.
Exposed layers on the lower portion of Mount Sharp are expected to hold evidence about dramatic changes in the environmental evolution of Mars. That was a major reason NASA chose this area of Mars for this mission.
The lowermost of these slices of time ascending the mountain includes a pale outcrop called “Pahrump Hills.”
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