University of Arizona's HiRISE camera possibly sees old Soviet craft on Mars

Citizen scientists in Russia may have identified the remains of a long-lost Soviet lander on Mars by poring over photos of the surface taken from the Mars Reconnaissance Orbiter with the University of Arizona's HiRISE camera.

UA's HiRISE camera finds Mars' ice cap fluctuations

These eight-tenths-of-a-mile sections photographed by the HiRISE camera show, from left, early spring, when the ground is covered by a seasonal layer of dry ice about 2 feet thick; and later spring, when the ice cracks, releasing dark sand from the dune below. When pressurized gas trapped be…

UA's HiRISE camera finds Mars' ice cap fluctuations

Our new understanding of the ever-changing topography of Mars came into full focus in the last week with the release of three scientific papers and dozens of images by the University of Arizona's HiRISE camera team.

Scientist shares thought-provoking pics

Stephen Strom's latest work depicts similarities between Martian and Earth landscapes. In this comparison, he pairs a shot of Ubehebe Crater in Death Valley, Calif., left, with an image of eroded gullies on Mars, at right, taken from the Reconnaissance Orbiter.

Scientist shares thought-provoking pics

Stephen Strom

Scientist shares thought-provoking pics

Photographer and astronomer Stephen Strom looks at our planet with a unique vision.

Sky spy: Use moon to find Mars, Antares, Mercury

The sun sets tonight at 5:47. If you look toward the southwest from 6 to 7, you will see the 4-day-old moon forming a right angle triangle with Mars and Antares, the brightest star in Scorpius the Scorpion.

NASA rover prepares to use laser on a Martian rock

LOS ANGELES — Ready, set, fire.

100 days of science: UA-run camera revealing Mars wonders

The orbiting HiRISE camera has photographed an array of Mars surface features including these dunes seen in enhanced color.

UA-led HiRise cam captures image of latest Mars landing

HiRise has done it again - this time, capturing a photo of the NASA rover Curiosity payload descending toward the surface of Mars beneath its parachute.

NASA rover Curiosity lands on Mars

PASADENA, Calif. — In a show of technological wizardry, the robotic explorer Curiosity blazed through the pink skies of Mars, steering itself to a gentle landing inside a giant crater for the most ambitious dig yet into the red planet's past.

Mars-landing mission focus of special talks, viewing here

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Mars-landing mission focus of special talks, viewing here

Peter Smith led the earlier Phoenix Mars Lander mission and will be one speaker.

Mars-landing mission focus of special talks, viewing here

Tucson may not be quite as "Mars crazy" this week as it was in 2008 when the University of Arizona's Lunar and Planetary lab began operating the Phoenix Mars Lander and its science experiments, but interest in the red planet remains high locally as NASA prepares to land another science lab on Mars.

Mars rover touchdown gets a 10 for difficulty

In this artist's rendering, a "sky crane" lowers the Curiosity rover onto Mars' surface. The landing is set for Sunday.

Mars rover touchdown gets a 10 for difficulty

PASADENA, Calif. - It's NASA's most ambitious and expensive Mars mission yet - and it begins with the red planet arrival late Sunday of the smartest interplanetary rover ever built.

Mars rover nearing its Aug. 6 landing

WASHINGTON - In the early morning hours of Aug. 6, NASA and space enthusiasts across the world will be able to monitor the Mars landing of the most advanced robot ever to be sent to another world.

Ray Bradbury, author of 'Fahrenheit 451,' dies

Ray Bradbury, the science fiction-fantasy master who transformed his childhood dreams and Cold War fears into telepathic Martians, lovesick sea monsters, and, in uncanny detail, the high-tech, book-burning future of "Fahrenheit 451," has died. He was 91.