Written by Guy Webster
Pasadena, CA – Scientists may be closer to solving the mystery of how Mars changed from a world with surface water billions of years ago to the arid Red Planet of today.
A new analysis of the largest known deposit of carbonate minerals on Mars suggests that the original Martian atmosphere may have already lost most of its carbon dioxide by the era of valley network formation.
“The biggest carbonate deposit on Mars has, at most, twice as much carbon in it as the current Mars atmosphere,” said Bethany Ehlmann of the California Institute of Technology and NASA Jet Propulsion Laboratory, both in Pasadena.
Written by DC Agle
Pasadena, CA – Next time you tune in to public radio or the hottest Top 40 radio station, you’ll be using some of the same tools NASA uses to unravel the mysteries of the universe.
Courtney Duncan, an engineer at NASA’s Jet Propulsion Laboratory in Pasadena, California, says studying radio waves coming from a known source in space can reveal a great deal about objects in our solar system.
Of course, there is nothing new in that. NASA scientists have been turning the transmissions of their spacecraft’s radio into scientific gold since almost the beginning of the space age. And ground-based astronomers have not been left outside of the radio spectrum looking in.
Written by Guy Webster
Pasadena, CA – Ten years after launch, NASA’s Mars Reconnaissance Orbiter (MRO) has revealed the Red Planet’s diversity and activity, returning more data about Mars every week than all six other missions currently active there. And its work is far from over.
The workhorse orbiter now plays a key role in NASA’s Journey to Mars planning. Images from the orbiter, revealing details as small as a desk, aid the analysis of potential landing sites for the 2016 InSight lander and Mars 2020 rover. Data from the orbiter will also be used as part of NASA’s newly announced process to examine and select candidate sites where humans will first explore the Martian surface in the 2030s.
NASA Kennedy Space Center
Kennedy Space Center, FL – The six astronauts currently living on the International Space Station (ISS) have become the first people to eat food grown in space. The fresh red romaine lettuce that accompanied the crew’s usual freeze-dried fare, however, is far from the first crop grown on a space station.
For decades, NASA and other agencies have experimented with plants in space, but the results were always sent to Earth for examination, rather than eaten.
A number of technologies NASA has explored for these space-farming experiments also have returned to Earth over the years and found their way onto the market.
Written by Linda Herridge
Kennedy Space Center, FL – Fresh food grown in the microgravity environment of space officially is on the menu for the first time for NASA astronauts on the International Space Station. Expedition 44 crew members, including NASA’s one-year astronaut Scott Kelly, are ready to sample the fruits of their labor after harvesting a crop of “Outredgeous” red romaine lettuce Monday, August 10th, from the Veggie plant growth system on the nation’s orbiting laboratory.
The astronauts will clean the leafy greens with citric acid-based, food safe sanitizing wipes before consuming them. They will eat half of the space bounty, setting aside the other half to be packaged and frozen on the station until it can be returned to Earth for scientific analysis.
Written by Guy Webster and Whitney Clavin
Pasadena, CA – On the three-year anniversary of the Mars landing of NASA’s Curiosity rover, NASA is unveiling two new online tools that open the mysterious terrain of the Red Planet to a new generation of explorers, inviting the public to help with its journey to Mars.
Mars Trek is a free, Web-based application that provides high-quality, detailed visualizations of the planet using real data from 50 years of NASA exploration and allowing astronomers, citizen scientists and students to study the Red Planet’s features.
Written by Elizabeth Landau
Pasadena, CA – Striking 3-D detail highlights a towering mountain, the brightest spots and other features on dwarf planet Ceres in a new video from NASA’s Dawn mission.
A prominent mountain with bright streaks on its steep slopes is especially fascinating to scientists. The peak’s shape has been likened to a cone or a pyramid. It appears to be about 4 miles (6 kilometers) high, with respect to the surface around it, according to the latest estimates. This means the mountain has about the same elevation as Mount McKinley in Denali National Park, Alaska, the highest point in North America.
NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) telescope studies Odd group of Asteroids
Written by DC Agle
Pasadena, CA – High above the plane of our solar system, near the asteroid-rich abyss between Mars and Jupiter, scientists have found a unique family of space rocks.
These interplanetary oddballs are the Euphrosyne (pronounced you-FROH-seh-nee) asteroids, and by any measure they have been distant, dark and mysterious — until now.
Distributed at the outer edge of the asteroid belt, the Euphrosynes have an unusual orbital path that juts well above the ecliptic, the equator of the solar system. The asteroid after which they are named, Euphrosyne — for an ancient Greek goddess of mirth — is about 156 miles (260 kilometers) across and is one of the 10 largest asteroids in the main belt.
Written by Guy Webster
Pasadena, CA – With its biggest orbit maneuver since 2006, NASA’s Mars Reconnaissance Orbiter (MRO) will prepare this week for the arrival of NASA’s next Mars lander, InSight, next year.
A planned 77-second firing of six intermediate-size thrusters on July 29th will adjust the orbit timing of the veteran spacecraft so it will be in position to receive radio transmissions from InSight as the newcomer descends through the Martian atmosphere and touches down on September 28th, 2016.
Written Dwayne Brown and Laurie Cantillo
Washington, D.C. – Flowing ice and a surprising extended haze are among the newest discoveries from NASA’s New Horizons mission, which reveal distant Pluto to be an icy world of wonders.
“We knew that a mission to Pluto would bring some surprises, and now — 10 days after closest approach — we can say that our expectation has been more than surpassed,” said John Grunsfeld, NASA’s associate administrator for the Science Mission Directorate. “With flowing ices, exotic surface chemistry, mountain ranges, and vast haze, Pluto is showing a diversity of planetary geology that is truly thrilling.”
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