03.09.11 - NASA's versatile Mars Reconnaissance Orbiter, which began orbiting Mars five years ago on March 10, has radically expanded our knowledge of the Red Planet and is now working overtime.
03.09.11 - A new color view from NASA's Mars Reconnaissance Orbiter catches the rover Opportunity at work beside a football-field-size crater which the rover will soon leave behind.
03.08.11 - Rocks on Mars dug from far underground by crater-blasting impacts are providing glimpses of one possible way Mars' atmosphere has become much less dense than it used to be.
02.14.11 - Hearty thoughts are prompted by the image of a crater in the Arabia Terra region of Mars, taken by the Conext Camera on NASA's Mars Reconnaissance Orbiter.
02.03.11 - Sand dunes in a vast area of northern Mars long thought to be frozen in time are changing with both sudden and gradual motions, according to research using images from a NASA orbiter.
01.04.11 - NASA's Mars Reconnaissance Orbiter has photographed the Mars Exploration Rover Opportunity beside a crater where the rover will spend the seventh anniversary of its landing.
12.16.10 - NASA's Mars Opportunity rover is getting important tips from an orbiting spacecraft as it explores areas that might hold clues about past Martian environments.
12.01.10 - Thousands of new Mars images from 340 observations by the highest resolution camera orbiting the Red Planet include scenes of rimless pits, mud volcanoes and other features.
10.31.10 - Light-colored mounds of a mineral deposited on a volcanic cone more than three billion years ago may preserve evidence of one of the most recent habitable microenvironments on Mars.
10.29.10 - Images from NASA's Mars Reconnaissance Orbiter implicate that carbon-dioxide frost, rather than water, is causing fresh flows of sand on some of the planet's dune gullies.
09.29.10 - In preparation for NASA's next rover landing on the Red Planet, one Mars year away, an instrument studying the Martian atmosphere from orbit has begun a campaign.
09.20.10 - NASA's Mars Reconnaissance Orbiter resumed observing Mars with its science instruments on Sept. 18, recovering from an unplanned reboot of its computer three days earlier.
09.17.10 - NASA's Mars Reconnaissance Orbiter put itself into a precautionary standby mode after experiencing a spontaneous computer reboot on Sept. 15.
08.04.10 - The most powerful telescopic camera ever to orbit Mars reveals a fresh crater, an ice mound, climate-recording layers and many other views in 314 newly released observations.
08.02.10 - NASA's Mars Reconnaissance Orbiter has a new project manager: Phil Varghese, who has managed another veteran NASA Mars mission – the Mars Odyssey orbiter – since 2004.
06.24.10 - Minerals in northern Mars craters seen by two orbiters suggest that a phase in Mars' early history with conditions favorable to life occurred globally, not just in the south.
06.09.10 - Six hundred recent observations of the Mars landscape from an orbiting telescopic camera include scenes of sinuous gullies, geometrical ridges and steep cliffs.
05.26.10 - Data from NASA's Mars Reconnaissance Orbiter have helped scientists solve a pair of decades-old mysteries and provided new information about climate change on Mars.
05.05.10 - New images from more than 750 recent observations of Mars by an orbiting telescopic camera testify to the diversity of landscapes there.
03.31.10 - The most powerful camera aboard a NASA spacecraft orbiting Mars has returned the first pictures of locations on the Red Planet suggested by the public.