MOUNTAIN VIEW, Calif. (SETI Insitute PR — Scientists from the SETI Institute and Purdue University have found that the only way to produce Deimos’s unusually tilted orbit is for Mars to have had a ring billions of years ago. While some of the more massive planets in our solar system have giant rings and numerous big moons, Mars only has two small, misshapen moons, Phobos and Deimos. Although these moons are small, their peculiar orbits hide important secrets about their past.
PASADENA, Calif. (NASA PR) — On Nov. 26, NASA’s InSight mission knew the spacecraft touched down within an 81-mile-long (130-kilometer-long) landing ellipse on Mars. Now, the team has pinpointed InSight’s exact location using images from HiRISE, a powerful camera onboard another NASA spacecraft, Mars Reconnaissance Orbiter (MRO).
PASADENA, Calif. (NASA PR) — What’s the sound of a touchdown on Mars?
If you’re at NASA’s Jet Propulsion Laboratory, it sounds like winning the Super Bowl: cheers, laughter and lots of hollering.
But in the minutes before that, NASA’s InSight team will be monitoring the Mars lander’s radio signals using a variety of spacecraft — and even radio telescopes here on Earth — to suss out what’s happening 91 million miles (146 million km) away.
WASHINGTON, DC (NASA PR) — New findings from NASA’s Mars Reconnaissance Orbiter (MRO) provide the strongest evidence yet that liquid water flows intermittently on present-day Mars.
Using an imaging spectrometer on MRO, researchers detected signatures of hydrated minerals on slopes where mysterious streaks are seen on the Red Planet. These darkish streaks appear to ebb and flow over time. They darken and appear to flow down steep slopes during warm seasons, and then fade in cooler seasons. They appear in several locations on Mars when temperatures are above minus 10 degrees Fahrenheit (minus 23 Celsius), and disappear at colder times.
SWINDON, England (UKSA PR) — The UK-led Beagle 2 Mars Lander, thought lost on Mars since 2003, has been found partially deployed on the surface of the planet, ending the mystery of what happened to the mission more than a decade ago. This find shows that the Entry, Descent and Landing (EDL) sequence for Beagle 2 worked and the lander did successfully touchdown on Mars on Christmas Day 2003. Beagle 2 hitched a ride to Mars on ESA’s Mars Express mission and was a collaboration between industry and academia. It would have delivered world-class science from the surface of the Red Planet. Many UK academic groups and industrial companies contributed to Beagle 2.
TUCSON, Ariz. — The high-resolution camera on NASA’s Mars Reconnaissance Orbiter has returned a dramatic oblique view of the Martian crater that a rover explored for two years.
The new view of Victoria Crater shows layers on steep crater walls, difficult to see from straight overhead, plus wheel tracks left by NASA’s Mars Exploration Rover Opportunity between September 2006 and August 2008.
Scientists on the HiRISE team have discovered never-before-seen impact â€œmegabrecciaâ€ and a possibly once-habitable ancient lake on Mars at a place called Holden crater.
The megabreccia is topped by layers of fine sediments that formed in what apparently was a long-lived, calm lake that filled Holden crater on early Mars, HiRISE scientists say.
â€œHolden crater has some of the best-exposed lake deposits and ancient megabreccia known on Mars,” said HiRISEâ€™s principal investigator, professor Alfred McEwen of the UAâ€™s Lunar and Planetary Laboratory. â€Both contain minerals that formed in the presence of water and mark potentially habitable environments. This would be an excellent place to send a rover or sample-return mission to make major advances in understanding if Mars supported life.â€œ
Pasadena, Calif. — A NASA spacecraft in orbit around Mars has taken the first ever image of active avalanches near the Red Planet’s north pole. The image shows tan clouds billowing away from the foot of a towering slope, where ice and dust have just cascaded down.
The High Resolution Imaging Science Experiment (HiRISE) on NASA’s Mars Reconnaissance Orbiter took the photograph Feb. 19. It is one of approximately 2,400 HiRISE images being released today.