Curious Mars

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Opportunity Views Comet Near Mars

© NASA

Opportunity Views Comet Near Mars

Mars Exploration Rover Opportunity captured images of a comet passing much closer to Mars than any previous known comet flyby of Earth or Mars. The images of comet Siding Spring were taken against a backdrop of the pre-dawn Martian sky on Sunday (Oct. 19).


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All Three NASA Mars Orbiters Healthy After Comet Flyby

© NASA

NASA's Mars Fleet

All three NASA orbiters around Mars confirmed their healthy status Sunday after each took shelter behind Mars during a period of risk from dust released by a passing comet.

Comet Siding Spring Close Encounter with Mars Q & A

Comet Siding Spring Close Encounter with Mars Q & A Video in Story

Jared Espley and Michelle Thaller talk about the close encounter between Mars and Comet Siding Spring at the Oct 17, 2014.


MAVEN Provides Its First Look at the Upper Atmosphere of Mars

MAVEN Provides Its First Look at the Upper Atmosphere of Mars

NASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft has provided scientists their first look at a storm of energetic solar particles at Mars.


The Look of a Young Mars

The Look of a Young Mars

This artist's concept depicts the early Martian environment (left) - believed to contain liquid water and a thicker atmosphere - versus the cold, dry environment seen at Mars today (right).


NASA News Briefing on Comet Siding Spring Close Encounter With Mars

NASA News Briefing on Comet Siding Spring Close Encounter With Mars Video in Story

During an October 9 press briefing at NASA headquarters, panelists discussed the Earth and space-based assets that will be in position to observe the October 19 flyby of Mars by comet C/2013 A1, also known as comet Siding Spring. These assets include NASA's iconic Hubble Space Telescope and spacecraft orbiting and roving Mars.


ScienceCasts: First Light for MAVEN

ScienceCasts: First Light for MAVEN Video in Story

NASA's MAVEN spacecraft has reached Mars and it is beaming back "First Light" images of the Red Planet's upper atmosphere. The data could help researchers understand what transformed Mars from a hospitable planet billions of years ago into a desiccated wasteland today.


New Image From Mars Orbiter

New Image From Mars Orbiter

Full disc image of Mars taken by Mars Orbiter's Color Camera, from an altitude of 66,543 km. The dark region towards south of the cloud formation is Elysium. Larger image


Four Candidate Landing Sites for ExoMars 2018

Four Candidate Landing Sites for ExoMars 2018

Four possible landing sites are being considered for the ExoMars mission in 2018. Its rover will search for evidence of martian life, past or present.


India's Mars Orbiter Image of Martian Dust Storms

India's Mars Orbiter Image of Martian Dust Storms

Regional dust storm activities over Northern Hemisphere of Mars - captured by Mars Color Camera on-board Mars Orbiter Spacecraft from altitude of 74500 km on Sep 28, 2014 High resolution image.


MAVEN Returns First Mars Observations

MAVEN Returns First Mars Observations

NASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft has obtained its first observations of the extended upper atmosphere surrounding Mars.


India's Mars Orbiter Sends Back Its First Images

India's Mars Orbiter Sends Back Its First Images

India's Mars Orbiter Spacecraft has captured its first image of Mars. The image was taken from a height of 7300 km; with 376 m spatial resolution. Larger image. Another image shows the limb of Mars.


India's Mars Orbiter Spacecraft Enters Mars Orbit

India's Mars Orbiter Spacecraft Enters Mars Orbit

India successfully placed its Mars Orbiter Mission spacecraft into orbit around Mars this evening - and in so doing it became the first nation to put something into Mars orbit on its very first attempt.


MAVEN Enters Orbit Around Mars

MAVEN Enters Orbit Around Mars Video in Story

NASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft successfully entered Mars' orbit at 10:24 p.m. EDT Sunday, Sept. 21, where it now will prepare to study the Red Planet's upper atmosphere as never done before. MAVEN is the first spacecraft dedicated to exploring the tenuous upper atmosphere of Mars.


MAVEN Is Ready for Sept. 21 Orbit Insertion

MAVEN Is Ready for Sept. 21 Orbit Insertion Video in Story

NASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft is nearing its scheduled Sept. 21 insertion into Martian orbit after completing a 10-month interplanetary journey of 442 million miles.


Curiosity Rover Arrives at Base of Mt. Sharp

Curiosity Rover Arrives at Base of Mt. Sharp Video in Story

NASA's Mars Curiosity rover has reached the Red Planet's Mount Sharp, a Mount-Rainier-size mountain at the center of the vast Gale Crater and the rover mission's long-term prime destination.


Mars Opportunity Rover's Long Tracks on Crater Rim

Mars Opportunity Rover's Long Tracks on Crater Rim Video in Story

From a ridgeline viewpoint, NASA's Mars Exploration Rover Opportunity recently recorded a scene looking back over its own tracks made from nearly half-a-mile (more than 700 meters) of southbound driving.


Memory Reformat Planned for Opportunity

Memory Reformat Planned for Opportunity

An increasing frequency of computer resets on NASA's Mars Exploration Rover Opportunity has prompted the rover team to make plans to reformat the rover's flash memory.



More top stories from October.