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Topic: Moon

NASA’s New Horizons spacecraft takes images of small Moons Orbiting Pluto

 

NASA’s Science Mission Directorate

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Exactly 85 years after Clyde Tombaugh’s historic discovery of Pluto, the NASA spacecraft set to encounter the icy dwarf planet this summer is providing its first views of the small moons orbiting Pluto.

The moons Nix and Hydra are visible in a series of images taken by the New Horizons spacecraft from January 27th-February 8th, at distances ranging from about 125 million to 115 million miles (201 million to 186 million kilometers). The long-exposure images offer New Horizons’ best view yet of these two small moons circling Pluto which Tombaugh discovered at Lowell Observatory in Flagstaff, Arizona, on February 18th, 1930.

The moons Nix and Hydra are visible in a series of images taken by the New Horizons spacecraft. (NASA/Johns Hopkins APL/Southwest Research Institute)

The moons Nix and Hydra are visible in a series of images taken by the New Horizons spacecraft. (NASA/Johns Hopkins APL/Southwest Research Institute)

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NASA’s New Horizons spacecraft observes moon Charon orbiting Pluto

 

NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – This time-lapse “movie” of Pluto and its largest moon, Charon, was recently shot at record-setting distances with the Long-Range Reconnaissance Imager (LORRI) on NASA’s New Horizons spacecraft. The movie was made over about a week, from January 25th-31st, 2015.

It was taken as part of the mission’s second optical navigation (“OpNav”) campaign to better refine the locations of Pluto and Charon in preparation for the spacecraft’s close encounter with the small planet and its five moons on July 14th, 2015.

This time-lapse “movie” of Pluto and its largest moon, Charon, was recently shot at record-setting distances with the Long-Range Reconnaissance Imager (LORRI) on NASA’s New Horizons spacecraft. (NASA/APL/Southwest Research Institute)

This time-lapse “movie” of Pluto and its largest moon, Charon, was recently shot at record-setting distances with the Long-Range Reconnaissance Imager (LORRI) on NASA’s New Horizons spacecraft. (NASA/APL/Southwest Research Institute)

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NASA’s Cassini spacecraft’s radar pictures of Saturn’s moon Titan made clearer by new Despeckling process

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – During 10 years of discovery, NASA’s Cassini spacecraft has pulled back the smoggy veil that obscures the surface of Titan, Saturn’s largest moon.

Cassini’s radar instrument has mapped almost half of the giant moon’s surface; revealed vast, desert-like expanses of sand dunes; and plumbed the depths of expansive hydrocarbon seas. What could make that scientific bounty even more amazing? Well, what if the radar images could look even better?

Thanks to a recently developed technique for handling noise in Cassini’s radar images, these views now have a whole new look.

Presented here are side-by-side comparisons of a traditional Cassini Synthetic Aperture Radar (SAR) view and one made using a new technique for handling electronic noise that results in clearer views of Titan's surface. (NASA/JPL-Caltech/ASI)

Presented here are side-by-side comparisons of a traditional Cassini Synthetic Aperture Radar (SAR) view and one made using a new technique for handling electronic noise that results in clearer views of Titan’s surface. (NASA/JPL-Caltech/ASI)

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NASA’s Hubble Space Telescope takes photo of three moons transiting the face of Jupiter in rare conjunction

 

Written by Rob Gutro
NASA’s Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD -Firing off a string of action snapshots like a sports photographer at a NASCAR race, NASA’s Hubble Space Telescope captured the rare occurrence of three of Jupiter’s largest moons racing across the banded face of the gas-giant planet: Europa, Callisto, and Io.

These so-called Galilean moons, named after the 17th century scientist Galileo Galilei, who discovered them with a telescope, complete orbits around Jupiter with durations ranging from 2 days to 17 days. They can commonly be seen transiting the face of Jupiter and casting shadows onto its cloud tops.

Hubble Captures Rare Triple-Moon Conjunction of Jupiter's largest moons: Europa, Callisto, and Io. (NASA, ESA, and the Hubble Heritage Team (STScI/AURA))

Hubble Captures Rare Triple-Moon Conjunction of Jupiter’s largest moons: Europa, Callisto, and Io. (NASA, ESA, and the Hubble Heritage Team (STScI/AURA))

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NASA’s New Horizons spacecraft takes new photos of Pluto and it’s moon Charon

 

Written by Dwayne Brown
NASA Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA’s New Horizons spacecraft returned its first new images of Pluto on Wednesday, as the probe closes in on the dwarf planet. Although still just a dot along with its largest moon, Charon, the images come on the 109th birthday of Clyde Tombaugh, who discovered the distant icy world in 1930.

“My dad would be thrilled with New Horizons,” said Clyde Tombaugh’s daughter Annette Tombaugh, of Las Cruces, New Mexico. “To actually see the planet that he had discovered, and find out more about it — to get to see the moons of Pluto– he would have been astounded. I’m sure it would have meant so much to him if he were still alive today.”

The image of Pluto and its moon Charon, taken by NASA’s New Horizons spacecraft, was magnified four times to make the objects more visible. Over the next several months, the apparent sizes of Pluto and Charon, as well as the separation between them, will continue to expand in the images. (NASA/JHU APL/SwRI)

The image of Pluto and its moon Charon, taken by NASA’s New Horizons spacecraft, was magnified four times to make the objects more visible. Over the next several months, the apparent sizes of Pluto and Charon, as well as the separation between them, will continue to expand in the images. (NASA/JHU APL/SwRI)

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NASA’s Cassini spacecraft observes Saturn’s moon Titan in the Solar Wind

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Researchers studying data from NASA’s Cassini mission have observed that Saturn’s largest moon, Titan, behaves much like Venus, Mars or a comet when exposed to the raw power of the solar wind. The observations suggest that unmagnetized bodies like Titan might interact with the solar wind in the same basic ways, regardless of their nature or distance from the sun.

Titan is large enough that it could be considered a planet if it orbited the sun on its own, and a flyby of the giant moon in December 2013 simulated that scenario, from Cassini’s vantage point.

This diagram depicts conditions observed by NASA's Cassini spacecraft during a flyby in Dec. 2013, when Saturn's magnetosphere was highly compressed, exposing Titan to the full force of the solar wind. (NASA/JPL-Caltech)

This diagram depicts conditions observed by NASA’s Cassini spacecraft during a flyby in Dec. 2013, when Saturn’s magnetosphere was highly compressed, exposing Titan to the full force of the solar wind. (NASA/JPL-Caltech)

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NASA’s Deep Space Network antenna image shows Asteroid passing Earth today had it’s own Moon

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Scientists working with NASA’s 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone, California, have released the first radar images of asteroid 2004 BL86. The images show the asteroid, which made its closest approach today (January 26th, 2015) at 8:19am PST (10:19am CST) at a distance of about 745,000 miles (1.2 million kilometers, or 3.1 times the distance from Earth to the moon), has its own small moon.

The 20 individual images used in the movie were generated from data collected at Goldstone on January 26th, 2015. They show the primary body is approximately 1,100 feet (325 meters) across and has a small moon approximately 230 feet (70 meters) across.

This GIF shows asteroid 2004 BL86, which safely flew past Earth on Jan. 26, 2015. (NASA/JPL-Caltech)

This GIF shows asteroid 2004 BL86, which safely flew past Earth on Jan. 26, 2015. (NASA/JPL-Caltech)

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NASA and European Space Agency look back at the landing on Saturn’s moon Titan

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Ten years ago, an explorer from Earth parachuted into the haze of an alien moon toward an uncertain fate. After a gentle descent lasting more than two hours, it landed with a thud on a frigid floodplain, surrounded by icy cobblestones.

With this feat, the Huygens probe accomplished humanity’s first landing on a moon in the outer solar system. Huygens was safely on Titan, the largest moon of Saturn.

The hardy probe not only survived the descent and landing, but continued to transmit data for more than an hour on the frigid surface of Titan, until its batteries were drained.

An artist's interpretation of the area surrounding the Huygens landing site based on images and data returned by the probe on Jan. 14, 2005. (ESA - C. Carreau)

An artist’s interpretation of the area surrounding the Huygens landing site based on images and data returned by the probe on Jan. 14, 2005. (ESA – C. Carreau)

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NASA’s Near Earth Object Program reports Asteroid to Safely Fly By on January 26th, 2015

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – An asteroid, designated 2004 BL86, will safely pass about three times the distance of Earth to the moon on January 26th. From its reflected brightness, astronomers estimate that the asteroid is about a third of a mile (0.5 kilometers) in size.

The flyby of 2004 BL86 will be the closest by any known space rock this large until asteroid 1999 AN10 flies past Earth in 2027.

At the time of its closest approach on January 26th, the asteroid will be approximately 745,000 miles (1.2 million kilometers) from Earth.

This graphic depicts the passage of asteroid 2004 BL86, which will come no closer than about three times the distance from Earth to the moon on Jan. 26th, 2015. Due to its orbit around the sun, the asteroid is currently only visible by astronomers with large telescopes who are located in the southern hemisphere. But by Jan. 26th, the space rock's changing position will make it visible to those in the northern hemisphere. (NASA/JPL-Caltech)

This graphic depicts the passage of asteroid 2004 BL86, which will come no closer than about three times the distance from Earth to the moon on Jan. 26th, 2015. Due to its orbit around the sun, the asteroid is currently only visible by astronomers with large telescopes who are located in the southern hemisphere. But by Jan. 26th, the space rock’s changing position will make it visible to those in the northern hemisphere. (NASA/JPL-Caltech)

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NASA looks back at Apollo 8 spending Christmas at the Moon

 

NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Christmas Eve, 1968. As one of the most turbulent, tragic years in American history drew to a close, millions around the world were watching and listening as the Apollo 8 astronauts – Frank Borman, Jim Lovell and Bill Anders – became the first humans to orbit another world.

As their command module floated above the lunar surface, the astronauts beamed back images of the moon and Earth and took turns reading from the book of Genesis, closing with a wish for everyone “on the good Earth.”

The famous 'Earthrise' photo from Apollo 8, the first manned mission to the moon. The crew entered lunar orbit on Christmas Eve, Dec. 24, 1968. That evening, the astronauts held a live broadcast, showing pictures of the Earth and moon as seen from their spacecraft. (NASA)

The famous ‘Earthrise’ photo from Apollo 8, the first manned mission to the moon. The crew entered lunar orbit on Christmas Eve, Dec. 24, 1968. That evening, the astronauts held a live broadcast, showing pictures of the Earth and moon as seen from their spacecraft. (NASA)

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