The United Arab Emirates (UAE) is poised to make history as it becomes the first Arab nation to reach Mars orbit with its ambitious Hope mission, focused on unraveling the Red Planet's dynamic weather patterns.
On Tuesday, February 9, the UAE Space Agency will attempt to insert its first interplanetary probe into Mars orbit. Launched in July 2020 aboard a Japanese rocket, Hope will spend a full Martian year—equivalent to 687 Earth days—studying the planet's enigmatic atmosphere.
In a recent interview with Space.com, Sarah Al Amiri, President of the UAE Space Agency and a leading expert in planetary science, highlighted the mission's challenges and its potential to advance our understanding of Mars.
As the first weather satellite in a high elliptical orbit around Mars—ranging from 20,000 to 43,000 kilometers—Hope will provide unprecedented global observations of the planet's weather system throughout the day. Previous probes offered limited snapshots, capturing data only at specific times and locations.
Over its year-long mission, the probe will also track seasonal changes in Mars' climate. "The Martian weather is dynamic, much like Earth's, so understanding global dust storms, clouds, and water vapor is crucial," explains Al Amiri.
A key goal is to measure how far hydrogen and oxygen extend from Mars into space. "While other missions have examined solar-driven atmospheric loss, Hope will reveal the weather system's role," Al Amiri notes. "For instance, we'll assess how localized dust storms influence hydrogen and oxygen escape from the upper atmosphere and identify the underlying processes."
Ultimately, this mission will fill critical gaps in our knowledge of Mars' weather dynamics, offering a broader perspective than prior efforts.
Al Amiri detailed the intricate orbital maneuver scheduled for 4:30 p.m. French time on Tuesday.
"This is the most challenging phase. We'll fire our thrusters for 27 minutes straight to decelerate from 121,000 km/h to about 18,000 km/h, allowing Mars' gravity to capture us." This innovative spacecraft design, refined over seven years, represents uncharted territory for the UAE team.
Success will position the UAE as the fifth entity to reach Mars, following NASA, Russia, the European Space Agency (ESA), and India's Space Research Organization.
