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Topic: Jupiter

NASA Scientists take new look at Voyager 2 Data, Find new Discovery about Uranus

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – Eight and a half years into its grand tour of the solar system, NASA’s Voyager 2 spacecraft was ready for another encounter. It was January 24th, 1986, and soon it would meet the mysterious seventh planet, icy-cold Uranus.

Over the next few hours, Voyager 2 flew within 50,600 miles (81,433 kilometers) of Uranus’ cloud tops, collecting data that revealed two new rings, 11 new moons and temperatures below minus 353 degrees Fahrenheit (minus 214 degrees Celsius). The dataset is still the only up-close measurements we have ever made of the planet.

Voyager 2 took this image as it approached the planet Uranus on Jan. 14, 1986. The planet's hazy bluish color is due to the methane in its atmosphere, which absorbs red wavelengths of light. (NASA/JPL-Caltech)

Voyager 2 took this image as it approached the planet Uranus on Jan. 14, 1986. The planet’s hazy bluish color is due to the methane in its atmosphere, which absorbs red wavelengths of light. (NASA/JPL-Caltech)

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NASA’s Juno spacecraft data reveals amount of Water in Jupiter’s Atmosphere

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Juno mission has provided its first science results on the amount of water in Jupiter’s atmosphere. Published recently in the journal Nature Astronomy, the Juno results estimate that at the equator, water makes up about 0.25% of the molecules in Jupiter’s atmosphere – almost three times that of the Sun.

These are also the first findings on the gas giant’s abundance of water since the agency’s 1995 Galileo mission suggested Jupiter might be extremely dry compared to the Sun (the comparison is based not on liquid water but on the presence of its components, oxygen and hydrogen, present in the Sun).

The JunoCam imager aboard NASA's Juno spacecraft captured this image of Jupiter's southern equatorial region on Sept. 1, 2017. The image is oriented so Jupiter's poles (not visible) run left-to-right of frame. (NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill)

The JunoCam imager aboard NASA’s Juno spacecraft captured this image of Jupiter’s southern equatorial region on Sept. 1, 2017. The image is oriented so Jupiter’s poles (not visible) run left-to-right of frame. (NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill)

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NASA picks Four Possible Missions to Study the Secrets of the Solar System

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA has selected four Discovery Program investigations to develop concept studies for new missions. Although they’re not official missions yet and some ultimately may not be chosen to move forward, the selections focus on compelling targets and science that are not covered by NASA’s active missions or recent selections. Final selections will be made next year.

NASA’s Discovery Program invites scientists and engineers to assemble a team to design exciting planetary science missions that deepen what we know about the solar system and our place in it.

The proposed Trident mission would explore Neptune's moon Triton, seen here in a global color mosaic with an artist's concept of an ionosphere. (NASA/JPL-Caltech)

The proposed Trident mission would explore Neptune’s moon Triton, seen here in a global color mosaic with an artist’s concept of an ionosphere. (NASA/JPL-Caltech)

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NASA’s Lucy Mission discovers asteroid Eurybates has a Satellite

 

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA’s Lucy mission team is seeing double after discovering that Eurybates, the asteroid the spacecraft has targeted for flyby in 2027, has a small satellite. This “bonus” science exploration opportunity for the project was discovered using images taken by the Hubble Space Telescope’s Wide Field Camera 3 in September 2018, December 2019, and January 2020.

Launching in October 2021, Lucy will be the first space mission to study the Trojan asteroids, a population of small bodies orbiting the Sun “leading” and “trailing” Jupiter, at the same distance from the Sun as the gas giant.

Artist rendition of NASA's Lucy spacecraft orbiting the asteroid Eurybates. (NASA)

Artist rendition of NASA’s Lucy spacecraft orbiting the asteroid Eurybates. (NASA)

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NASA’s Hubble Space Telescope observations gives clues to makeup of Super Puffy Planets

 

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – New data from NASA’s Hubble Space Telescope have provided the first clues to the chemistry of two of these super-puffy planets, which are located in the Kepler 51 system. This exoplanet system, which actually boasts three super-puffs orbiting a young Sun-like star, was discovered by NASA’s Kepler space telescope in 2012.

However, it wasn’t until 2014 when the low densities of these planets were determined, to the surprise of many.

The recent Hubble observations allowed a team of astronomers to refine the mass and size estimates for these worlds — independently confirming their “puffy” nature.

This illustration depicts the Sun-like star Kepler 51 and three giant planets that NASA's Kepler space telescope discovered in 2012–2014. These planets are all roughly the size of Jupiter but a tiny fraction of its mass. This means the planets have an extraordinarily low density, more like that of Styrofoam rather than rock or water, based on new Hubble Space Telescope observations. (NASA, ESA, and L. Hustak, J. Olmsted, D. Player and F. Summers (STScI))

This illustration depicts the Sun-like star Kepler 51 and three giant planets that NASA’s Kepler space telescope discovered in 2012–2014. These planets are all roughly the size of Jupiter but a tiny fraction of its mass. This means the planets have an extraordinarily low density, more like that of Styrofoam rather than rock or water, based on new Hubble Space Telescope observations. (NASA, ESA, and L. Hustak, J. Olmsted, D. Player and F. Summers (STScI))

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NASA’s Juno Spacecraft discovers new Cyclone on Jupiter

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA says Jupiter’s south pole has a new cyclone. The discovery of the massive Jovian tempest occurred on November 3rd, 2019, during the most recent data-gathering flyby of Jupiter by NASA’s Juno spacecraft. It was the 22nd flyby during which the solar-powered spacecraft collected science data on the gas giant, soaring only 2,175 miles (3,500 kilometers) above its cloud tops.

The flyby also marked a victory for the mission team, whose innovative measures kept the solar-powered spacecraft clear of what could have been a mission-ending eclipse.

A new, smaller cyclone can be seen at the lower right of this infrared image of Jupiter's south pole taken on November 4th, 2019, during the 23rd science pass of the planet by NASA's Juno spacecraft. (NASA/JPL-Caltech/SwRI/ASI/INAF/JIRAM)

A new, smaller cyclone can be seen at the lower right of this infrared image of Jupiter’s south pole taken on November 4th, 2019, during the 23rd science pass of the planet by NASA’s Juno spacecraft. (NASA/JPL-Caltech/SwRI/ASI/INAF/JIRAM)

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NASA announces Water Vapor Confirmed on Jupiter’s moon Europa

 

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – Forty years ago, a Voyager spacecraft snapped the first closeup images of Europa, one of Jupiter’s 79 moons. These revealed brownish cracks slicing the moon’s icy surface, which give Europa the look of a veiny eyeball. Missions to the outer solar system in the decades since have amassed enough additional information about Europa to make it a high-priority target of investigation in NASA’s search for life.

What makes this moon so alluring is the possibility that it may possess all of the ingredients necessary for life. Scientists have evidence that one of these ingredients, liquid water, is present under the icy surface and may sometimes erupt into space in huge geysers.

On the left is a view of Europa taken from 2.9 million kilometers (1.8 million miles) away on March 2, 1979 by the Voyager 1 spacecraft. Next is a color image of Europa taken by the Voyager 2 spacecraft during its close encounter on July 9, 1979. On the right is a view of Europa made from images taken by the Galileo spacecraft in the late 1990s. (NASA/JPL)

On the left is a view of Europa taken from 2.9 million kilometers (1.8 million miles) away on March 2, 1979 by the Voyager 1 spacecraft. Next is a color image of Europa taken by the Voyager 2 spacecraft during its close encounter on July 9, 1979. On the right is a view of Europa made from images taken by the Galileo spacecraft in the late 1990s. (NASA/JPL)

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NASA’s BRUIE Robotic Submersible tested under Sea Ice

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s little robotic explorer will be rolling into Antarctica this month to perform a gymnastic feat – driving upside down under sea ice.

BRUIE, or the Buoyant Rover for Under-Ice Exploration, is being developed for underwater exploration in extraterrestrial, icy waters by engineers at NASA’s Jet Propulsion Laboratory in Pasadena, California. It will spend the next month testing its endurance at Australia’s Casey research station in Antarctica, in preparation for a mission that could one day search for life in ocean worlds beyond Earth.  

An underwater rover called BRUIE is being tested in Antarctica to look for life under the ice. Developed by engineers at NASA-JPL, the robotic submersible could one day explore ice-covered oceans on moons like Europa and Enceladus. BRUIE is pictured here in an arctic lake near Barrow, Alaska in 2015. (NASA)

An underwater rover called BRUIE is being tested in Antarctica to look for life under the ice. Developed by engineers at NASA-JPL, the robotic submersible could one day explore ice-covered oceans on moons like Europa and Enceladus. BRUIE is pictured here in an arctic lake near Barrow, Alaska in 2015. (NASA)

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NASA’s Lucy Mission completes Critcal Design Review

 

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – On Friday, October 18th, 2019,  NASA’s Lucy mission successfully completed its Critical Design Review.

During this review, Lucy team members presented the completed mission design, demonstrating that the team has met all the technical challenges of the mission and is ready to begin building hardware. After the review completion, NASA’s independent review board provided a green light for proceeding into the fabrication/manufacturing stage of the mission.

Artist's concept of Lucy Mission. (SwRI)

Artist’s concept of Lucy Mission. (SwRI)

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NASA’s Juno Spacecraft maneuvers to avoid Jupiter’s Shadow

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – Last night, NASA’s Juno mission to Jupiter successfully executed a 10.5-hour propulsive maneuver – extraordinarily long by mission standards. The goal of the burn, as it’s known, will keep the solar-powered spacecraft out of what would have been a mission-ending shadow cast by Jupiter on the spacecraft during its next close flyby of the planet on November 3rd, 2019.

Juno began the maneuver yesterday, on September 30th, at 6:46pm CDT (4:46pm PDT) and completed it early on October 1st. Using the spacecraft’s reaction-control thrusters, the propulsive maneuver lasted five times longer than any previous use of that system.

This picture depicts the point of view of NASA's Juno spacecraft during its eclipse-free approach to the gas giant November 3rd, 2019. The Sun is depicted as the yellow dot rising up just to left of the planet. (NASA/JPL-Caltech/SWRI)

This picture depicts the point of view of NASA’s Juno spacecraft during its eclipse-free approach to the gas giant November 3rd, 2019. The Sun is depicted as the yellow dot rising up just to left of the planet. (NASA/JPL-Caltech/SWRI)

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