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Topic: water

NASA’s Hubble Space Telescope data shows Hot Jupiters may have Water in their Atmospheres

 

Written by Elizabeth Landau
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Water is a hot topic in the study of exoplanets, including “hot Jupiters,” whose masses are similar to that of Jupiter, but which are much closer to their parent star than Jupiter is to the sun. They can reach a scorching 2,000 degrees Fahrenheit (1,100 degrees Celsius), meaning any water they host would take the form of water vapor.

Astronomers have found many hot Jupiters with water in their atmospheres, but others appear to have none. Scientists at NASA’s Jet Propulsion Laboratory, Pasadena, California, wanted to find out what the atmospheres of these giant worlds have in common.

Hot Jupiters, exoplanets around the same size as Jupiter that orbit very closely to their stars, often have cloud or haze layers in their atmospheres. This may prevent space telescopes from detecting atmospheric water that lies beneath the clouds, according to a study in the Astrophysical Journal. (NASA/JPL-Caltech)

Hot Jupiters, exoplanets around the same size as Jupiter that orbit very closely to their stars, often have cloud or haze layers in their atmospheres. This may prevent space telescopes from detecting atmospheric water that lies beneath the clouds, according to a study in the Astrophysical Journal. (NASA/JPL-Caltech)

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Tennessee Department of Health says Stay Safe and Healthy at Upcoming Warm Weather Events

 

“Fight the Bite – Hydrate Right – Respect the Sun’s Might”

Tennessee Department of HealthNashville, TN – Summer is fast approaching and that means plenty of opportunities for outdoor fun and adventures across Tennessee. Thousands of music lovers will visit Nashville and Manchester June 9th through 12th for the CMA Music Festival and Bonnaroo.

Thousands more are expected for Elvis Week in Memphis August 10th through 16th and in Bristol for Bristol Motor Speedway’s NASCAR event August 20th.

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2016 Boating Season Kicks Off with Memorial Day Holiday Weekend

 

Tennessee Wildlife Resources Agency - TWRANashville, TN – Memorial Day holiday weekend is regarded as the unofficial start to the summer boating season and the Tennessee Wildlife Resources Agency wants to emphasize the use of life jackets while boating in a safe and responsible manner.

Along with the use of life jackets, TWRA wants to stress the responsible use of alcohol while boating. It is important to consider the effects of drinking and driving whether on water or land. In a boat on the water, the effects of alcohol increase because of external stressors such as engine vibration, wave motion and glare from the sun.

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NASA readies OSIRIS-REx spacecraft for September Launch

 

Written by Nancy Neal Jones
NASA’s Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – NASA’s first spacecraft designed to return a piece of an asteroid to Earth arrived Friday, May 20th, at the agency’s Kennedy Space Center in Florida, and has begun final preparations in advance of its September launch.

The Origins, Spectral Interpretation, Resource Identification, Security – Regolith Explorer (OSIRIS-REx) spacecraft will undergo final testing and fueling prior to being moved to its launch pad. The mission has a 34-day launch period beginning on September 8th.

After launch, the OSIRIS-REx spacecraft will travel to the near-Earth asteroid Bennu and retrieve at least 60 grams (2.1 ounces) of pristine surface material and return it to Earth for study.

NASA's OSIRIS-REx spacecraft is revealed after its protective cover is removed inside the Payload Hazardous Servicing Facility at Kennedy Space Center in Florida. The spacecraft traveled from Lockheed Martin's facility near Denver, Colorado to Kennedy to begin processing for its upcoming launch, targeted for Sept. 8 aboard a United Launch Alliance Atlas V rocket. (NASA/Dimitri Gerondidakis)

NASA’s OSIRIS-REx spacecraft is revealed after its protective cover is removed inside the Payload Hazardous Servicing Facility at Kennedy Space Center in Florida. The spacecraft traveled from Lockheed Martin’s facility near Denver, Colorado to Kennedy to begin processing for its upcoming launch, targeted for Sept. 8 aboard a United Launch Alliance Atlas V rocket. (NASA/Dimitri Gerondidakis)

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NASA reports three planets similar to Venus and Earth found orbiting Dwarf Star

 

NASA’s Johnson Space Center

NASA - National Aeronautics and Space AdministrationHouston, TX – Astronomers using the TRAPPIST telescope at ESO’s La Silla Observatory have discovered three planets with sizes and temperatures similar to those of Venus and Earth, orbiting an ultra-cool dwarf star just 40 light-years from Earth.

Michaël Gillon of the University of Liège in Belgium, leading a team of astronomers including Susan M. Lederer of NASA Johnson Space Center, have used the TRAPPIST telescope to observe the star 2MASS J23062928-0502285, now also known as TRAPPIST-1.

They found that this dim and cool star faded slightly at regular intervals, indicating that several objects were passing between the star and the Earth.

This artist’s impression shows an imagined view of the three planets orbiting an ultra-cool dwarf star just 40 light-years from Earth that were discovered using the TRAPPIST telescope at ESO’s La Silla Observatory. In this view, one of the inner planets is seen in transit across the disc of its tiny and dim parent star. (ESO/M. Kornmesser/N. Risinger (skysurvey.org))

This artist’s impression shows an imagined view of the three planets orbiting an ultra-cool dwarf star just 40 light-years from Earth that were discovered using the TRAPPIST telescope at ESO’s La Silla Observatory. In this view, one of the inner planets is seen in transit across the disc of its tiny and dim parent star. (ESO/M. Kornmesser/N. Risinger (skysurvey.org))

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NASA Researchers are developing new technologies to discover Earth-like Planets beyond our Solar System

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – We humans might not be the only ones to ponder our place in the universe. If intelligent aliens do roam the cosmos, they too might ask a question that has gripped humans for centuries: Are we alone?

These aliens might even have giant space telescopes dedicated to studying distant planets and searching for life. Should one of those telescopes capture an image of our blue marble of a planet, evidence of forests and plentiful creatures would jump out as simple chemicals: oxygen, ozone, water and methane.

The vacuum chamber at NASA's Jet Propulsion Laboratory in Pasadena, California, used for testing WFIRST and other coronagraphs. (NASA/JPL-Caltech)

The vacuum chamber at NASA’s Jet Propulsion Laboratory in Pasadena, California, used for testing WFIRST and other coronagraphs. (NASA/JPL-Caltech)

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NASA scientists research ways to discover habitable planets

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Scientists are getting closer to finding worlds that resemble our own “blue marble” of a planet. NASA’s Kepler mission alone has confirmed more than 1,000 planets outside our solar system — a handful of which are a bit bigger than Earth and orbit in the habitable zones of their stars, where liquid water might exist.

Some astronomers think the discovery of Earth’s true analogs may be around the corner. What are the next steps to search for life on these potentially habitable worlds?

This illustration shows the prototype starshade, a giant structure designed to block the glare of stars so that future space telescopes can take pictures of planets.

This illustration shows the prototype starshade, a giant structure designed to block the glare of stars so that future space telescopes can take pictures of planets.

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NASA’s Chandra X-ray Observatory studies Comet ISON and Comet PanSTARRS

 

Written by Molly Porter
NASA’s Marshall Space Flight Center

NASA - National Aeronautics and Space AdministrationHuntsville, AL – For millennia, people on Earth have watched comets in the sky. Many ancient cultures saw comets as the harbingers of doom, but today scientists know that comets are really frozen balls of dust, gas, and rock and may have been responsible for delivering water to planets like Earth billions of years ago.

While comets are inherently interesting, they can also provide information about other aspects of our Solar System. More specifically, comets can be used as laboratories to study the behavior of the stream of particles flowing away from the Sun, known as the solar wind.

Recently, astronomers announced the results of a study using data collected with NASA’s Chandra X-ray Observatory of two comets — C/2012 S1 (also known as “Comet ISON”) and C/2011 S4 (“Comet PanSTARRS”).

The Comets ISON and PanSTARRS in optical images taken by an astrophotographer, with insets showing the X-ray images from Chandra. (X-ray: NASA/CXC/Univ . of CT/B.Snios et al, Optical: DSS, Damian Peach ( damianpeach.com ))

The Comets ISON and PanSTARRS in optical images taken by an astrophotographer, with insets showing the X-ray images from Chandra. (X-ray: NASA/CXC/Univ . of CT/B.Snios et al, Optical: DSS, Damian Peach ( damianpeach.com ))

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NASA’s Mars Opportunity rover tackles highest angled slope ever attempted on Mars

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s long-lived Mars rover Opportunity is driving to an alternative hillside target after a climb on the steepest slope ever tackled by any Mars rover. Opportunity could not quite get within reach of a target researchers hoped the rover could touch earlier this month.

A new image shows the view overlooking the valley below and catches the rover’s own shadow and wheel tracks as Opportunity heads toward its next target.

A shadow and tracks of NASA's Mars rover Opportunity appear in this March 22, 2016, image, which has been rotated 13.5 degrees to adjust for the tilt of the rover. (NASA/JPL-Caltech)

A shadow and tracks of NASA’s Mars rover Opportunity appear in this March 22, 2016, image, which has been rotated 13.5 degrees to adjust for the tilt of the rover. (NASA/JPL-Caltech)

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NASA’s Airborne Environmental Monitoring Instrument proves it can be used to monitor Water Quality

 

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Monitoring the quality of freshwater supplies is a global concern, especially in thirsty California, where the San Francisco Bay-Delta Estuary and its watershed serve as a major freshwater source.

Now scientists at NASA’s Jet Propulsion Laboratory, Pasadena, California, and the U.S. Geological Survey, Menlo Park and Sacramento, California, have successfully demonstrated how a NASA-developed airborne environmental monitoring instrument can be applied to help water managers monitor water quality not only in San Francisco Bay, but potentially in other inland and coastal water bodies around the world.

Maps of a) turbidity (water clarity), b) dissolved organic carbon and c) chlorophyll-a in the San Francisco Bay-Delta Estuary's Grizzly Bay and Suisun Marsh in April 2014, derived from remote-sensing reflectance data from NASA's airborne Portable Remote Imaging Spectrometer (PRISM) instrument. (NASA/JPL-Caltech)

Maps of a) turbidity (water clarity), b) dissolved organic carbon and c) chlorophyll-a in the San Francisco Bay-Delta Estuary’s Grizzly Bay and Suisun Marsh in April 2014, derived from remote-sensing reflectance data from NASA’s airborne Portable Remote Imaging Spectrometer (PRISM) instrument. (NASA/JPL-Caltech)

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