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This image from NASA's Mars Reconnaissance Orbiter is of an approximately 5 kilometer (approx. 3.1 mile) diameter crater that is one of the rare examples of a fresh 'lunar-like' crater on Mars.
This image from NASA's Mars Reconnaissance Orbiter is of an approximately 5 kilometer (approx. 3.1 mile) diameter crater that is one of the rare examples of a fresh 'lunar-like' crater on Mars.

A Fresh, Lunar-Like Crater on Mars

This image from NASA's Mars Reconnaissance Orbiter is of an approximately 5 kilometer (approx. 3.1 mile) diameter crater that is one of the rare examples of a fresh 'lunar-like' crater on Mars.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA19124
Added: 2014-12-17

Views: 173

A Fresh, Lunar-Like Crater on Mars

This image from NASA's Mars Reconnaissance Orbiter is of an approximately 5 kilometer (approx. 3.1 mile) diameter crater that is one of the rare examples of a fresh 'lunar-like' crater on Mars.

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Elorza Crater is a complex crater located north of Coprates Chasma. This image from NASA's Mars Reconnaissance Orbiter centers on the southwestern portion of the central uplift, characterized by numerous bedrock exposures and coherent impact melt flows.
Elorza Crater is a complex crater located north of Coprates Chasma. This image from NASA's Mars Reconnaissance Orbiter centers on the southwestern portion of the central uplift, characterized by numerous bedrock exposures and coherent impact melt flows.

Possible Opaline Silica in the Central Uplift of Elorza Crater

Elorza Crater is a complex crater located north of Coprates Chasma. This image from NASA's Mars Reconnaissance Orbiter centers on the southwestern portion of the central uplift, characterized by numerous bedrock exposures and coherent impact melt flows.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA19123
Added: 2014-12-17

Views: 117

Possible Opaline Silica in the Central Uplift of Elorza Crater

Elorza Crater is a complex crater located north of Coprates Chasma. This image from NASA's Mars Reconnaissance Orbiter centers on the southwestern portion of the central uplift, characterized by numerous bedrock exposures and coherent impact melt flows.

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This image from NASA's Mars Reconnaissance Orbiter shows frosted gullies on a south-facing slope within a crater. At this time of year only south-facing slopes retain the frost, while the north-facing slopes have melted.
This image from NASA's Mars Reconnaissance Orbiter shows frosted gullies on a south-facing slope within a crater. At this time of year only south-facing slopes retain the frost, while the north-facing slopes have melted.

Frosty Slopes in Late Spring

This image from NASA's Mars Reconnaissance Orbiter shows frosted gullies on a south-facing slope within a crater. At this time of year only south-facing slopes retain the frost, while the north-facing slopes have melted.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA19122
Added: 2014-12-17

Views: 112

Frosty Slopes in Late Spring

This image from NASA's Mars Reconnaissance Orbiter shows frosted gullies on a south-facing slope within a crater. At this time of year only south-facing slopes retain the frost, while the north-facing slopes have melted.

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This image from NASA's Mars Reconnaissance Orbiter, approximately 1.5 x 3 kilometers, shows a sample of eroded Martian terrain in Arabia Terra.
This image from NASA's Mars Reconnaissance Orbiter, approximately 1.5 x 3 kilometers, shows a sample of eroded Martian terrain in Arabia Terra.

Eroding Terrain in Arabia Terra

This image from NASA's Mars Reconnaissance Orbiter, approximately 1.5 x 3 kilometers, shows a sample of eroded Martian terrain in Arabia Terra.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA19121
Added: 2014-12-17

Views: 110

Eroding Terrain in Arabia Terra

This image from NASA's Mars Reconnaissance Orbiter, approximately 1.5 x 3 kilometers, shows a sample of eroded Martian terrain in Arabia Terra.

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Polar layered deposits slopes are quite extensive and partially surround the South polar residual cap as seen in this image from NASA's Mars Reconnaissance Orbiter.
Polar layered deposits slopes are quite extensive and partially surround the South polar residual cap as seen in this image from NASA's Mars Reconnaissance Orbiter.

Polar Layered Deposit Slopes

Polar layered deposits slopes are quite extensive and partially surround the South polar residual cap as seen in this image from NASA's Mars Reconnaissance Orbiter.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA19120
Added: 2014-12-17

Views: 108

Polar Layered Deposit Slopes

Polar layered deposits slopes are quite extensive and partially surround the South polar residual cap as seen in this image from NASA's Mars Reconnaissance Orbiter.

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Details of hilly terrain within a large Martian canyon are shown on a geological map based on observations from NASA's Mars Reconnaissance Orbiter and produced by the U.S. Geological Survey.
Details of hilly terrain within a large Martian canyon are shown on a geological map based on observations from NASA's Mars Reconnaissance Orbiter and produced by the U.S. Geological Survey.

Geological Mapping of Hills in Martian Canyon

Details of hilly terrain within a large Martian canyon are shown on a geological map based on observations from NASA's Mars Reconnaissance Orbiter and produced by the U.S. Geological Survey.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA19084
Added: 2014-12-12

Views: 1815

Geological Mapping of Hills in Martian Canyon

Details of hilly terrain within a large Martian canyon are shown on a geological map based on observations from NASA's Mars Reconnaissance Orbiter and produced by the U.S. Geological Survey.

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This frame from an animation simulates a flyover of a portion of a Martian canyon detailed in a geological map produced by the U.S. Geological Survey and based on observations by the HiRISE camera on NASA's Mars Reconnaissance Orbiter.
This frame from an animation simulates a flyover of a portion of a Martian canyon detailed in a geological map produced by the U.S. Geological Survey and based on observations by the HiRISE camera on NASA's Mars Reconnaissance Orbiter.

Simulated Flyover of Mars Canyon Map (Animation)

This frame from an animation simulates a flyover of a portion of a Martian canyon detailed in a geological map produced by the U.S. Geological Survey and based on observations by the HiRISE camera on NASA's Mars Reconnaissance Orbiter.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA19085
Added: 2014-12-12

Views: 1223

Simulated Flyover of Mars Canyon Map (Animation)

This frame from an animation simulates a flyover of a portion of a Martian canyon detailed in a geological map produced by the U.S. Geological Survey and based on observations by the HiRISE camera on NASA's Mars Reconnaissance Orbiter.

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This closeup from NASA's Mars Reconnaissance Orbiter covers a region in the Eridania Basin that shows interesting inverted ridges.
This closeup from NASA's Mars Reconnaissance Orbiter covers a region in the Eridania Basin that shows interesting inverted ridges.

Inverted Ridges in the Eridania Basin

This closeup from NASA's Mars Reconnaissance Orbiter covers a region in the Eridania Basin that shows interesting inverted ridges.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA19119
Added: 2014-12-10

Views: 748

Inverted Ridges in the Eridania Basin

This closeup from NASA's Mars Reconnaissance Orbiter covers a region in the Eridania Basin that shows interesting inverted ridges.

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Juventae Chasma is a giant box canyon, yet a relatively small segment of the enormous Valles Marineris system, seen here by NASA's Mars Reconnaissance Orbiter.
Juventae Chasma is a giant box canyon, yet a relatively small segment of the enormous Valles Marineris system, seen here by NASA's Mars Reconnaissance Orbiter.

Recurring Slope Lineae in Juventae Chasma

Juventae Chasma is a giant box canyon, yet a relatively small segment of the enormous Valles Marineris system, seen here by NASA's Mars Reconnaissance Orbiter.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA19118
Added: 2014-12-10

Views: 543

Recurring Slope Lineae in Juventae Chasma

Juventae Chasma is a giant box canyon, yet a relatively small segment of the enormous Valles Marineris system, seen here by NASA's Mars Reconnaissance Orbiter.

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The frosted gullies in this observation from NASA's Mars Reconnaissance Orbiter are located along an irregularly shaped pit which lies within an impact crater in Sisyphi Planum ocated northwards of the Southern polar layered deposits.
The frosted gullies in this observation from NASA's Mars Reconnaissance Orbiter are located along an irregularly shaped pit which lies within an impact crater in Sisyphi Planum ocated northwards of the Southern polar layered deposits.

Frosted Gullies in a Central Pit

The frosted gullies in this observation from NASA's Mars Reconnaissance Orbiter are located along an irregularly shaped pit which lies within an impact crater in Sisyphi Planum ocated northwards of the Southern polar layered deposits.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA19117
Added: 2014-12-10

Views: 518

Frosted Gullies in a Central Pit

The frosted gullies in this observation from NASA's Mars Reconnaissance Orbiter are located along an irregularly shaped pit which lies within an impact crater in Sisyphi Planum ocated northwards of the Southern polar layered deposits.

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This image from NASA's Mars Reconnaissance Orbiter shows Morava Valles, a small outflow channel in the Margaritifer Sinus region of Mars.
This image from NASA's Mars Reconnaissance Orbiter shows Morava Valles, a small outflow channel in the Margaritifer Sinus region of Mars.

Seeing Beneath the Surface in Morava Valles

This image from NASA's Mars Reconnaissance Orbiter shows Morava Valles, a small outflow channel in the Margaritifer Sinus region of Mars.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA19116
Added: 2014-12-10

Views: 473

Seeing Beneath the Surface in Morava Valles

This image from NASA's Mars Reconnaissance Orbiter shows Morava Valles, a small outflow channel in the Margaritifer Sinus region of Mars.

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This image from NASA's Mars Reconnaissance Orbiter shows exposures of deposits along the plateau just to the south of Coprates Chasma.
This image from NASA's Mars Reconnaissance Orbiter shows exposures of deposits along the plateau just to the south of Coprates Chasma.

Clays along the Coprates Chasma Plateau

This image from NASA's Mars Reconnaissance Orbiter shows exposures of deposits along the plateau just to the south of Coprates Chasma.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA18933
Added: 2014-12-03

Views: 821

Clays along the Coprates Chasma Plateau

This image from NASA's Mars Reconnaissance Orbiter shows exposures of deposits along the plateau just to the south of Coprates Chasma.

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The Athabasca region contains some of the youngest lava flows on Mars. This looks like a circular island surrounded by a 'sea' of smooth-looking lava flows. This image was observed by NASA's Mars Reconnaissance Orbiter.
The Athabasca region contains some of the youngest lava flows on Mars. This looks like a circular island surrounded by a 'sea' of smooth-looking lava flows. This image was observed by NASA's Mars Reconnaissance Orbiter.

An Enigmatic Feature in Athabasca Lava Flows

The Athabasca region contains some of the youngest lava flows on Mars. This looks like a circular island surrounded by a 'sea' of smooth-looking lava flows. This image was observed by NASA's Mars Reconnaissance Orbiter.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA18932
Added: 2014-12-03

Views: 7862

An Enigmatic Feature in Athabasca Lava Flows

The Athabasca region contains some of the youngest lava flows on Mars. This looks like a circular island surrounded by a 'sea' of smooth-looking lava flows. This image was observed by NASA's Mars Reconnaissance Orbiter.

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Arabia Terra is one of the more dusty regions on Mars, where ever-falling red dust covers the surface allowing only minor variations in color and tone as seen by NASA's Mars Reconnaissance Orbiter.
Arabia Terra is one of the more dusty regions on Mars, where ever-falling red dust covers the surface allowing only minor variations in color and tone as seen by NASA's Mars Reconnaissance Orbiter.

Dunes and Wind Streaks in Arabia Terra

Arabia Terra is one of the more dusty regions on Mars, where ever-falling red dust covers the surface allowing only minor variations in color and tone as seen by NASA's Mars Reconnaissance Orbiter.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA18931
Added: 2014-12-03

Views: 788

Dunes and Wind Streaks in Arabia Terra

Arabia Terra is one of the more dusty regions on Mars, where ever-falling red dust covers the surface allowing only minor variations in color and tone as seen by NASA's Mars Reconnaissance Orbiter.

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Transverse aeolian ridges (TARs) are commonly found throughout the Martian tropics, including rocky regions such as Syrtis Major that are largely devoid of dust as seen by NASA's Mars Reconnaissance Orbiter.
Transverse aeolian ridges (TARs) are commonly found throughout the Martian tropics, including rocky regions such as Syrtis Major that are largely devoid of dust as seen by NASA's Mars Reconnaissance Orbiter.

Braided TARs in Syrtis Major

Transverse aeolian ridges (TARs) are commonly found throughout the Martian tropics, including rocky regions such as Syrtis Major that are largely devoid of dust as seen by NASA's Mars Reconnaissance Orbiter.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA18930
Added: 2014-12-03

Views: 696

Braided TARs in Syrtis Major

Transverse aeolian ridges (TARs) are commonly found throughout the Martian tropics, including rocky regions such as Syrtis Major that are largely devoid of dust as seen by NASA's Mars Reconnaissance Orbiter.

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A significant event has occurred in Inca City. The layer of seasonal ice has started to develop long cracks as evidenced by NASA's Mars Reconnaissance Orbiter.
A significant event has occurred in Inca City. The layer of seasonal ice has started to develop long cracks as evidenced by NASA's Mars Reconnaissance Orbiter.

Spring in Inca City V

A significant event has occurred in Inca City. The layer of seasonal ice has started to develop long cracks as evidenced by NASA's Mars Reconnaissance Orbiter.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA18896
Added: 2014-11-13

Views: 891

Spring in Inca City V

A significant event has occurred in Inca City. The layer of seasonal ice has started to develop long cracks as evidenced by NASA's Mars Reconnaissance Orbiter.

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At certain times in spring, fans take on a gray or blue appearance. This is the time in Inca City when this phenomenon happens, as seen in this image acquired by NASA's Mars Reconnaissance Orbiter.
At certain times in spring, fans take on a gray or blue appearance. This is the time in Inca City when this phenomenon happens, as seen in this image acquired by NASA's Mars Reconnaissance Orbiter.

Spring in Inca City IV

At certain times in spring, fans take on a gray or blue appearance. This is the time in Inca City when this phenomenon happens, as seen in this image acquired by NASA's Mars Reconnaissance Orbiter.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA18895
Added: 2014-11-13

Views: 758

Spring in Inca City IV

At certain times in spring, fans take on a gray or blue appearance. This is the time in Inca City when this phenomenon happens, as seen in this image acquired by NASA's Mars Reconnaissance Orbiter.

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This image, acquired by NASA's Mars Reconnaissance Orbiter, shows there are a few more fans on the ridge as spring activity progresses in Inca City.
This image, acquired by NASA's Mars Reconnaissance Orbiter, shows there are a few more fans on the ridge as spring activity progresses in Inca City.

Spring in Inca City III

This image, acquired by NASA's Mars Reconnaissance Orbiter, shows there are a few more fans on the ridge as spring activity progresses in Inca City.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA18894
Added: 2014-11-13

Views: 727

Spring in Inca City III

This image, acquired by NASA's Mars Reconnaissance Orbiter, shows there are a few more fans on the ridge as spring activity progresses in Inca City.

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The season is officially spring on Mars in Inca City. This image was acquired by NASA's Mars Reconnaissance Orbiter. Large blotches of dust cover the araneiforms.
The season is officially spring on Mars in Inca City. This image was acquired by NASA's Mars Reconnaissance Orbiter. Large blotches of dust cover the araneiforms.

Spring in Inca City II

The season is officially spring on Mars in Inca City. This image was acquired by NASA's Mars Reconnaissance Orbiter. Large blotches of dust cover the araneiforms.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA18893
Added: 2014-11-13

Views: 711

Spring in Inca City II

The season is officially spring on Mars in Inca City. This image was acquired by NASA's Mars Reconnaissance Orbiter. Large blotches of dust cover the araneiforms.

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This was the first image to be acquired by NASA's Mars Reconnaissance Orbiter after the sun rose on Inca City, marking the end to polar night. A few fans are visible emerging from the araneiforms.
This was the first image to be acquired by NASA's Mars Reconnaissance Orbiter after the sun rose on Inca City, marking the end to polar night. A few fans are visible emerging from the araneiforms.

Spring in Inca City I

This was the first image to be acquired by NASA's Mars Reconnaissance Orbiter after the sun rose on Inca City, marking the end to polar night. A few fans are visible emerging from the araneiforms.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA18892
Added: 2014-11-13

Views: 677

Spring in Inca City I

This was the first image to be acquired by NASA's Mars Reconnaissance Orbiter after the sun rose on Inca City, marking the end to polar night. A few fans are visible emerging from the araneiforms.

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This frame from an animated artist's rendering begins with NASA's Mars Reconnaissance Orbiter spacecraft above Mars. The movie then transitions to a sequence of HiRISE images of the comet taken as it flew past Mars.
This frame from an animated artist's rendering begins with NASA's Mars Reconnaissance Orbiter spacecraft above Mars. The movie then transitions to a sequence of HiRISE images of the comet taken as it flew past Mars.

Mars Orbiter Observes Comet Siding Spring (Animation)

This frame from an animated artist's rendering begins with NASA's Mars Reconnaissance Orbiter spacecraft above Mars. The movie then transitions to a sequence of HiRISE images of the comet taken as it flew past Mars.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA19045
Added: 2014-11-07

Views: 1198

Mars Orbiter Observes Comet Siding Spring (Animation)

This frame from an animated artist's rendering begins with NASA's Mars Reconnaissance Orbiter spacecraft above Mars. The movie then transitions to a sequence of HiRISE images of the comet taken as it flew past Mars.

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This frame from a movie sequence of images from NASA's Mars Reconnaissance Orbiter (MRO) shows comet C/2013 A1 Siding Spring before and after its close pass by Mars in October 2014. False color enhances subtle variations in brightness in the comet's coma.
This frame from a movie sequence of images from NASA's Mars Reconnaissance Orbiter (MRO) shows comet C/2013 A1 Siding Spring before and after its close pass by Mars in October 2014. False color enhances subtle variations in brightness in the comet's coma.

Mars-Flyby Comet in False Color

This frame from a movie sequence of images from NASA's Mars Reconnaissance Orbiter (MRO) shows comet C/2013 A1 Siding Spring before and after its close pass by Mars in October 2014. False color enhances subtle variations in brightness in the comet's coma.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA19044
Added: 2014-11-07

Views: 849

Mars-Flyby Comet in False Color

This frame from a movie sequence of images from NASA's Mars Reconnaissance Orbiter (MRO) shows comet C/2013 A1 Siding Spring before and after its close pass by Mars in October 2014. False color enhances subtle variations in brightness in the comet's coma.

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The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) aboard NASA's Mars Reconnaissance Orbiter obtained this spectrum for comet C/2013 A1 Siding Spring during the comet's close approach to Mars.
The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) aboard NASA's Mars Reconnaissance Orbiter obtained this spectrum for comet C/2013 A1 Siding Spring during the comet's close approach to Mars.

Mars-Orbiting Spectrometer Shows Dusty Comet's Spectrum

The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) aboard NASA's Mars Reconnaissance Orbiter obtained this spectrum for comet C/2013 A1 Siding Spring during the comet's close approach to Mars.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: Compact Reconnaissance Imaging Spectrometer for Mars (CRISM)
ID#: PIA18865
Added: 2014-11-07

Views: 1124

Mars-Orbiting Spectrometer Shows Dusty Comet's Spectrum

The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) aboard NASA's Mars Reconnaissance Orbiter obtained this spectrum for comet C/2013 A1 Siding Spring during the comet's close approach to Mars.

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Five images of comet Siding Spring taken within a 35-minute period as it passed near Mars on Oct. 19, 2014, provide information about the size of the comet's nucleus. The images were acquired by the HiRISE camera on NASA's Mars Reconnaissance Orbiter.
Five images of comet Siding Spring taken within a 35-minute period as it passed near Mars on Oct. 19, 2014, provide information about the size of the comet's nucleus. The images were acquired by the HiRISE camera on NASA's Mars Reconnaissance Orbiter.

Mars Orbiter Sizes Up Passing Comet

Five images of comet Siding Spring taken within a 35-minute period as it passed near Mars on Oct. 19, 2014, provide information about the size of the comet's nucleus. The images were acquired by the HiRISE camera on NASA's Mars Reconnaissance Orbiter.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA18863
Added: 2014-11-07

Views: 843

Mars Orbiter Sizes Up Passing Comet

Five images of comet Siding Spring taken within a 35-minute period as it passed near Mars on Oct. 19, 2014, provide information about the size of the comet's nucleus. The images were acquired by the HiRISE camera on NASA's Mars Reconnaissance Orbiter.

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This graph shows changes in apparent brightness of comet C/2013 A1 Siding Spring as it approached and receded from Mars, as seen by the HiRISE camera on NASA's Mars Reconnaissance Orbiter. The pattern suggests the comet rotates once every eight hours.
This graph shows changes in apparent brightness of comet C/2013 A1 Siding Spring as it approached and receded from Mars, as seen by the HiRISE camera on NASA's Mars Reconnaissance Orbiter. The pattern suggests the comet rotates once every eight hours.

Brightness Rhythm of Mars Flyby Comet Is Clue to Rotation Rate

This graph shows changes in apparent brightness of comet C/2013 A1 Siding Spring as it approached and receded from Mars, as seen by the HiRISE camera on NASA's Mars Reconnaissance Orbiter. The pattern suggests the comet rotates once every eight hours.

Target: Mars
Mission: Mars Reconnaissance Orbiter (MRO)
Spacecraft: Mars Reconnaissance Orbiter (MRO)
Instrument: High Resolution Imaging Science Experiment (HiRISE)
ID#: PIA18862
Added: 2014-11-07

Views: 647

Brightness Rhythm of Mars Flyby Comet Is Clue to Rotation Rate

This graph shows changes in apparent brightness of comet C/2013 A1 Siding Spring as it approached and receded from Mars, as seen by the HiRISE camera on NASA's Mars Reconnaissance Orbiter. The pattern suggests the comet rotates once every eight hours.

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