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Rover

All articles tagged with #rover

Opportunity’s Solar-Powered Odyssey Surpasses Its Limits
space1 day ago

Opportunity’s Solar-Powered Odyssey Surpasses Its Limits

Opportunity exceeded its 90-sol, 600-metre primary mission by driving about 45.16 kilometres over 14.5 years on Mars; a 2018 global dust storm cut sunlight, preventing wake-up after a prolonged discharge and ending with its last transmission on sol 5111. The famous line about a low battery was a human interpretation of telemetry, not the rover’s own words. NASA declared the mission complete in February 2019, and Opportunity’s endurance and geology work shaped later Mars missions and rover design.

NASA's ERNEST Rover Proves Agile Autonomy for Future Moon Missions
technology1 month ago

NASA's ERNEST Rover Proves Agile Autonomy for Future Moon Missions

NASA's Jet Propulsion Laboratory is field-testing ERNEST, a compact autonomous rover designed to move faster across rugged terrain for future Moon and Mars missions. In a desert trial, ERNEST reached up to 0.6 mph and covered about 16 miles over roughly 37 hours, using mesh-wheeled propulsion, four steerable wheels, and two powered front joints to switch among gaits like squirming, wheel-walking, and obstacle-climbing. Trained with reinforcement learning, the rover can navigate autonomously and even drive sideways, aiming to reach previously inaccessible regions on upcoming missions.

Curiosity Timelapse Reveals How Martian Sand Moves and Wheels Endure
science2 months ago

Curiosity Timelapse Reveals How Martian Sand Moves and Wheels Endure

NASA released a two‑minute timelapse from the Curiosity rover spanning six years at Gale Crater to study how sand grains shift on the rover’s deck as it climbs Mount Sharp; the footage helps scientists separate wheel‑driven sand from wind‑blown dust, part of broader findings about Mars’ past habitability and ongoing challenges like wheel wear, with Curiosity having traveled about 23 miles since landing in 2012, and NASA continuing engineering tweaks to keep the rover moving.

ESA Eyes Laser-Driven Moon Rover to Probe Ice in Permanently Shadowed Craters
technology3 months ago

ESA Eyes Laser-Driven Moon Rover to Probe Ice in Permanently Shadowed Craters

A European concept named PHILIP would power a 250 kg lunar rover with a 500-watt infrared laser from a sunlit lander up to 15 km away, enabling operation in the Moon’s permanently shadowed, ice-rich regions by converting the laser into electricity with modified solar panels; the system also enables two-way data via a modulated retro-reflector, with field tests in Tenerife and plans for prototyping under ESA funding.

Curiosity Encounters Six-Foot Boxwork Ridges, Hinting at Ancient Martian Water and Potential Life
space5 months ago

Curiosity Encounters Six-Foot Boxwork Ridges, Hinting at Ancient Martian Water and Potential Life

NASA’s Mars Curiosity rover is studying six-foot-high “boxwork” ridges on Mount Sharp, likely formed by ancient lakes and groundwater. The minerals, including clay, suggest wet conditions long ago and the possibility of preserved signs of past microbial life. The team has mapped routes through the ridges, plans to leave the area next month, and will continue exploring the sulfate-rich layers to understand Mars’ climate history.

Curiosity Probes Mars Night with Robotic LEDs to Reveal Hidden Rock Layers
space5 months ago

Curiosity Probes Mars Night with Robotic LEDs to Reveal Hidden Rock Layers

NASA’s Curiosity rover lights up Martian darkness with LEDs on its robotic arm to illuminate a rock drill hole—Nevado Sajama—so scientists can study rock layers and boxwork formations that are otherwise shadowed. The true-color image from the Mars Hand Lens Imager shows how nighttime imaging helps geology work, building on 2018 drill improvements and noting a smooth hole drilled on sol 4740.

NASA's Moon Dust Miscalculation: A Physics Error That Lasted Years
science-and-technology1 year ago

NASA's Moon Dust Miscalculation: A Physics Error That Lasted Years

UW-Madison engineers discovered a flaw in how rover terrain is tested on Earth, revealing that Earth's gravity affects sand support differently than on the moon, which impacts rover mobility predictions. Their physics-based simulations, using open-source software Chrono, improve understanding of extraterrestrial surface traversal, benefiting space missions and Earth applications alike.