Sky & Telescope - February 2024 - 14

Mars Missions
This objective required combining their technical capabilities
and budget with a goal worth pursuing, so they
took a careful look at what the Mars science community
was demanding. " There was this gaping hole in Mars science
about active weather processes and escape rates, " says
Christopher Edwards (Northern Arizona University), who
presented results from the orbiter's Emirates Mars Infrared
Spectrometer (EMIRS) at the 2023 European Geosciences
Union in Vienna. While other spacecraft in and around
Mars have provided closeup views of these processes, putting
together a global vision that combined observations of both
the upper and lower atmosphere was challenging. " No mission
was doing things in a really coordinated way. "
EMM is designed to change that. Over the course of the
mission, initially planned for a whole Martian year, the
researchers have made daily observations of the whole atmosphere
and tracked how it changed from season to season.
" With the Emirates Mars Mission we want to get a holistic
view of Mars, " says the mission's science lead, Hessa Al
Matroushi (Mohammed Bin Rashid Space Centre). " We want
to get a global view of Mars, to get the diurnal variation from
day to night to understand what is happening, and we want
to take that from different layers of the atmosphere. " Scientists
will use this information to improve global circulation
models - computer programs that simulate the behavior of
the Martian atmosphere.
To obtain this global view, Hope orbits Mars in a highaltitude
elliptical orbit ranging from 20,000 to 43,000 km
(12,400 to 26,700 miles). From there, it can see the whole
atmosphere, including the flow of particles escaping to space.
NOSE TO THE GRINDSTONE Scientists and engineers labored to design, build, and test the EMM craft in about half the time of a normal mission.
Construction began in 2015, and testing ran from late 2019 until days before the 2020 launch.
14 FEBRUARY 2024 * SKY & TELESCOPE
EMIRATES MARS MISSION (3)

Sky & Telescope - February 2024

Table of Contents for the Digital Edition of Sky & Telescope - February 2024

Contents
Sky & Telescope - February 2024 - Cover1
Sky & Telescope - February 2024 - Cover2
Sky & Telescope - February 2024 - 1
Sky & Telescope - February 2024 - Contents
Sky & Telescope - February 2024 - 3
Sky & Telescope - February 2024 - 4
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