Topic: Hydrogen Sulfide

NASA detects Hydrogen Sulfide in clouds on Uranus

April 25, 2018 |

NASA’s Jet Propulsion Laboratory

Pasadena, CA – Even after decades of observations and a visit by NASA’s Voyager 2 spacecraft, Uranus held on to one critical secret — the composition of its clouds. Now, one of the key components of the planet’s clouds has finally been verified.

A global research team that includes Glenn Orton of NASA’s Jet Propulsion Laboratory in Pasadena, California, has spectroscopically dissected the infrared light from Uranus captured by the 26.25-foot (8-meter) Gemini North telescope on Hawaii’s Mauna Kea. They found hydrogen sulfide, the odiferous gas that most people avoid, in Uranus’ cloud tops. The long-sought evidence was published in the April 23rd issue of the journal Nature Astronomy.

Arriving at Uranus in 1986, Voyager 2 observed a bluish orb with extremely subtle features. A haze layer hid most of the planet’s cloud features from view. (NASA/JPL-Caltech)

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NASA satellite instruments help detect, track Wildfires

January 28, 2018 |

NASA’s Jet Propulsion Laboratory

Pasadena, CA – NASA’s satellite instruments are often the first to detect wildfires burning in remote regions, and the locations of new fires are sent directly to land managers worldwide within hours of the satellite overpass.

Together, NASA instruments, including a number built and managed by NASA’s Jet Propulsion Laboratory in Pasadena, California, detect actively burning fires, track the transport of smoke from fires, provide information for fire management, and map the extent of changes to ecosystems, based on the extent and severity of burn scars.

The concentration and global transport of carbon monoxide pollution from fires burning in Russia, Siberia and Canada is depicted in this NASA photo created with data from the Atmospheric Infrared Sounder (AIRS) instrument on NASA’s Aqua spacecraft. (NASA)

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NASA reports Rosetta spacecraft witnessed outburst from Comet 67P/Churyumov-Gerasimenko

August 13, 2015 |

Written by DC Agle
NASA’s Jet Propulsion Laboratory

Pasadena, CA – The European Space Agency’s Rosetta spacecraft has been witnessing growing activity from comet 67P/Churyumov-Gerasimenko as the comet approaches perihelion (its closest point to the sun during its orbit). On July 29th, while the spacecraft orbited at a distance of 116 miles (186 kilometers) from the comet, it observed the most dramatic outburst to date.

Early science results collected during the outburst came from several instruments aboard Rosetta, including the Double Focusing Mass Spectrometer (DFMS), which uses NASA-built electronics. The DFMS is part of the spacecraft’s Rosetta Orbiter Spectrometer for Ion and Neutral Analysis (ROSINA) instrument.

A short-lived outburst from comet 67P/Churyumov-Gerasimenko was captured by Rosetta’s OSIRIS narrow-angle camera on July 29, 2015. (ESA/Rosetta/MPS)

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NASA study of Deep Sea Shrimp may reveal what Life could be like on other Planetary Bodies

November 24, 2014 |

Written by Elizabeth Landau
NASA’s Jet Propulsion Laboratory

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.

Shrimp called Rimicaris hybisae at deep hydrothermal vents in the Caribbean seem to have different dietary habits depending on the proximity of other shrimp. Those who live in dense clusters like this one live off bacteria primarily, but in areas where the shrimp are distributed more sparsely, the shrimp are more likely to turn carnivorous, and even eat each other. (Courtesy Chris German, WHOI/NSF, NASA/ROV Jason ©2012 Woods Hole Oceanographic Institution)

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