Stunning Mars Orbiter Images Reveal Ancient Volcano Peeking Above Cloud Cover

NASA’s 2001 Mars Odyssey orbiter recently provided a stunning view of Arsia Mons, Mars’ largest volcano, peeking above a blanket of clouds. This rare sight showcases the volcano at a unique angle, giving us a glimpse of the Martian horizon.

“We aimed to catch Arsia Mons as the sun rose, and it didn’t disappoint,” said Jonathon Hill, who leads operations for Odyssey’s camera at Arizona State University. The orbiter uses a tool called the Thermal Emission Imaging System (THEMIS) that can capture images in both visible and infrared light.

Odyssey has been in orbit around Mars for over 20 years, studying its surface. In 2023, it began taking breathtaking panoramic views. To achieve this, the spacecraft tilts 90 degrees, allowing it to capture images of Mars’ edge, a technique it has used several times this year.

The image was captured on May 2, just before dawn. Arsia Mons rises about 12 miles (20 kilometers) high and spans 70 miles (450 kilometers) wide. For comparison, Earth’s highest volcano, Mauna Loa, is 6 miles (9 kilometers) tall from the seafloor and 75 miles (121 kilometers) wide.

Arsia Mons is notable not just for its size but also because it is often shrouded in clouds, particularly early in the morning. These clouds form when air ascends the volcano’s slopes and cools quickly. This phenomenon allows scientists to study Mars’ weather patterns, like dust storms and seasonal changes.

Recent research shows that the atmosphere of Mars is thinner than previously thought, which impacts how clouds form. In fact, a study by the European Space Agency found that Mars experiences seasonal changes that affect its weather patterns significantly.

As Odyssey nears its scheduled retirement later this year, it may capture even more breathtaking views. With each photo, we gain better insights into Martian weather and geological history, helping scientists understand our neighboring planet. This ongoing exploration highlights how advanced technology continues to unravel the mysteries of Mars.

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Mars,Mars missions,Volcanoes