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Topic: NASA’s Jet Propulsion Laboratory

NASA’s Gravity Recovery and Climate Experiment (GRACE) satellites data reveals River Areas Flood Potential

 

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Every year, river flooding takes a heavy toll of lives and property damage in the United States. A new study has found that the potential of a river basin to flood can be assessed months in advance of flood season by using data from NASA’s Gravity Recovery and Climate Experiment (GRACE) twin satellites. The new finding could eventually lead to longer lead times for flood warnings.

“Case studies of the catastrophic Missouri River floods of 2011 show that flood-potential early warning times could be increased by a couple of seasons using these satellite data,” said co-author Jay Famiglietti.

The flooded confluence of the Nishnabotna and Missouri Rivers in Iowa, June 2011. A study of the 2011 Missouri River Basin floods has shown that NASA satellite data can help predict the potential of a river basin to flood as much as 11 months in advance of flood season. (U.S. Army Corps of Engineers)

The flooded confluence of the Nishnabotna and Missouri Rivers in Iowa, June 2011. A study of the 2011 Missouri River Basin floods has shown that NASA satellite data can help predict the potential of a river basin to flood as much as 11 months in advance of flood season. (U.S. Army Corps of Engineers)

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NASA to Air discussion on Searching for Life Beyond Earth by Leading Space Experts Monday, July 14th

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA Television will air a panel discussion of leading science and engineering experts on Monday, July 14th, from 11:00am to 12:30pm PDT (3:00pm to 4:30pm CDT), who will describe the scientific and technological roadmap that will lead to the discovery of potentially habitable worlds among the stars.

The event will take place at NASA Headquarters in Washington.

The artist's concept depicts Kepler-186f , the first validated Earth-size planet to orbit a distant star in the habitable zone-a range of distance from a star where liquid water might pool on the planet's surface. (NASA)

The artist’s concept depicts Kepler-186f , the first validated Earth-size planet to orbit a distant star in the habitable zone-a range of distance from a star where liquid water might pool on the planet’s surface. (NASA)

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NASA’s Mars Reconnaissance Orbiter discovers evidence that Gullies on Mars are being created by Dry Ice

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, 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.

This pair of images covers one of the hundreds of sites on Mars where researchers have repeatedly used the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter to study changes in gullies on slopes. (NASA/JPL-Caltech/Univ. of Arizona)

This pair of images covers one of the hundreds of sites on Mars where researchers have repeatedly used the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter to study changes in gullies on slopes. (NASA/JPL-Caltech/Univ. of Arizona)

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NASA’s Mars Curiosity Rover drives out of area mapped as safe for it’s 2012 Landing

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA Mars rover Curiosity has driven out of the ellipse, approximately 4 miles wide and 12 miles long (7 kilometers by 20 kilometers), that was mapped as safe terrain for its 2012 landing inside Gale Crater.

The High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter photographed the rover on June 27th at the end of a drive that put Curiosity right on the ellipse boundary.

This June 27, 2014, image from the HiRISE camera on NASA's Mars Reconnaissance Orbiter shows NASA's Curiosity Mars rover on the rover's landing-ellipse boundary, which is superimposed on the image. The 12-mile-wide ellipse was mapped as safe terrain for its 2012 landing inside Gale Crater. (NASA/JPL-Caltech/Univ. of Arizona)

This June 27, 2014, image from the HiRISE camera on NASA’s Mars Reconnaissance Orbiter shows NASA’s Curiosity Mars rover on the rover’s landing-ellipse boundary, which is superimposed on the image. The 12-mile-wide ellipse was mapped as safe terrain for its 2012 landing inside Gale Crater. (NASA/JPL-Caltech/Univ. of Arizona)

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NASA’s Voyager 1 spacecraft senses Tsunami Waves from our Sun in Interstellar Space

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Voyager 1 spacecraft has experienced a new “tsunami wave” from the sun as it sails through interstellar space. Such waves are what led scientists to the conclusion, in the fall of 2013, that Voyager had indeed left our sun’s bubble, entering a new frontier.

“Normally, interstellar space is like a quiet lake,” said Ed Stone of the California Institute of Technology in Pasadena, California, the mission’s project scientist since 1972. “But when our sun has a burst, it sends a shock wave outward that reaches Voyager about a year later. The wave causes the plasma surrounding the spacecraft to sing.”

The Space Between: This artist's concept shows the Voyager 1 spacecraft entering the space between stars. Interstellar space is dominated by plasma, ionized gas (illustrated here as brownish haze), that was thrown off by giant stars millions of years ago. (NASA/JPL-Caltech)

The Space Between: This artist’s concept shows the Voyager 1 spacecraft entering the space between stars. Interstellar space is dominated by plasma, ionized gas (illustrated here as brownish haze), that was thrown off by giant stars millions of years ago. (NASA/JPL-Caltech)

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NASA’s Wide-field Infrared Survey Explorer (WISE) tracks Comet Pan-STARRS

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s NEOWISE mission captured a series of pictures of comet C/2012 K1 — also known as comet Pan-STARRS — as it swept across our skies in May 2014.

The comet is named after the astronomical survey project called the Panoramic Survey Telescope and Rapid Response System in Hawaii, which discovered the icy visitor in May 2012.

Comet Pan-STARRS hails from the outer fringes of our solar system, from a vast and distant reservoir of comets called the Oort cloud.

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NASA reports discovery of Icy Planet in Binary Star System

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A newly discovered planet in a binary, or twin, star system located 3,000 light-years from Earth is expanding astronomers’ notions of where Earth-like — and even potentially habitable — planets can form, and how to find them.

At twice the mass of Earth, the planet orbits one of the stars in the binary system at almost exactly the same distance at which Earth orbits the sun. However, because the planet’s host star is much dimmer than the sun, the planet is much colder than Earth — a little colder, in fact, than Jupiter’s icy moon Europa.

This artist's rendering shows a newly discovered planet (far right) orbiting one star (right) of a binary star system. The discovery, made by a collaboration of international research teams and led by researchers at The Ohio State University, expands astronomers' notions of where to look for planets in our galaxy. The research was funded in part by NASA. (Cheongho Han, Chungbuk National University, Republic of Korea)

This artist’s rendering shows a newly discovered planet (far right) orbiting one star (right) of a binary star system. The discovery, made by a collaboration of international research teams and led by researchers at The Ohio State University, expands astronomers’ notions of where to look for planets in our galaxy. The research was funded in part by NASA. (Cheongho Han, Chungbuk National University, Republic of Korea)

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NASA observes Fireworks created by Black Hole in Nearby Galaxy

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Celebrants this Fourth of July will enjoy the dazzling lights and booming shock waves from the explosions of fireworks. A similarly styled event is taking place in the galaxy Messier 106, as seen by NASA’s Spitzer Space Telescope, Chandra X-ray Observatory and the Herschel Space Observatory. Herschel is a European Space Agency mission with important NASA contributions.

Energetic jets, which blast from Messier 106′s central black hole, are heating up material in the galaxy and thus making it glow, like the ingredients in a firework. The jets also power shock waves that are driving gases out of the galaxy’s interior.

A galaxy about 23 million light-years away is the site of impressive, ongoing, fireworks. Rather than paper, powder, and fire, this galactic light show involves a giant black hole, shock waves, and vast reservoirs of gas. (NASA/CXC/JPL-Caltech/STScI/NSF/NRAO/VLA)

A galaxy about 23 million light-years away is the site of impressive, ongoing, fireworks. Rather than paper, powder, and fire, this galactic light show involves a giant black hole, shock waves, and vast reservoirs of gas. (NASA/CXC/JPL-Caltech/STScI/NSF/NRAO/VLA)

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NASA’s Cassini spacecraft data reveals salty ocean inside Saturn’s moon Titan

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, 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.”

Researchers found that Titan's ice shell, which overlies a very salty ocean, varies in thickness around the moon, suggesting the crust is in the process of becoming rigid. (NASA/JPL/SSI/Univ. of Arizona/G. Mitri/University of Nantes)

Researchers found that Titan’s ice shell, which overlies a very salty ocean, varies in thickness around the moon, suggesting the crust is in the process of becoming rigid. (NASA/JPL/SSI/Univ. of Arizona/G. Mitri/University of Nantes)

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NASA successfully launches Orbiting Carbon Observatory-2 spacecraft from Vandenberg Air Force Base

 

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA successfully launched its first spacecraft dedicated to studying atmospheric carbon dioxide at 2:56am PDT (6:56am CDT) Wednesday.

The Orbiting Carbon Observatory-2 (OCO-2) raced skyward from Vandenberg Air Force Base, California, on a United Launch Alliance Delta II rocket. Approximately 56 minutes after the launch, the observatory separated from the rocket’s second stage into an initial 429-mile (690-kilometer) orbit.

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