Two deep-space probes bound for Mars captured visible and thermal infrared images of Earth and the Moon from hundreds of thousands of miles away, providing crucial engineering data for an upcoming interplanetary mission, according to mission officials. The images were captured on July 3 by NASA’s ESCAPADE spacecraft.
Deep-Space Imaging and Calibration of ESCAPADE Cameras
At the time of the imaging run, one of the ESCAPADE (Escape and Plasma Acceleration and Dynamics Explorers) spacecraft sat 363,250 miles (584,600 kilometers) from Earth and 115,600 miles (186,100 kilometers) from the Moon, according to mission data. The positioning made the Moon appear relatively large in the frame. The visible light image showed both bodies as thin crescents with only about 8 percent of their faces sunlit, as the Sun illuminated them partially from the side.
The thermal infrared perspective revealed a stark contrast. While the visible light cameras caught slender crescents, the thermal view showed Earth’s shadowed hemisphere glowing from the residual heat of its atmosphere and surface at temperatures ranging from minus 10 to minus 44 degrees Fahrenheit (250 to 280 kelvins). Meanwhile, the Moon’s far side rested at a much colder minus 280 degrees Fahrenheit (100 kelvins) due to a lack of insulating oceans and atmospheres.
The Visible and Infrared Observation System cameras, provided by Northern Arizona University in Flagstaff, captured the data. Rob Lillis, the mission’s principal investigator at the University of California, Berkeley, noted the operational utility of the shoot. “We are thrilled that ESCAPADE was able to accommodate these excellent space-qualified cameras which will search for visible Martian aurora and investigate thermal properties of the Martian surface and atmosphere,” Lillis stated, adding that imaging well-known targets like Earth and the Moon provides an essential calibration check for the instruments.
Trajectory and Mars Mission Timeline
Built by Rocket Lab, the ESCAPADE spacecraft currently occupy a loiter orbit around Lagrange point 2, a gravitational sweet spot roughly a million miles from Earth. In November 2026, the probes will execute an Earth flyby, leveraging the planet’s gravitational pull as a slingshot toward the Red Planet, according to mission schedules. Upon arrival in September 2027, the spacecraft will begin studying how solar wind—a million-mile-per-hour stream of material flowing from the Sun—interacts with the Martian environment to drive atmospheric loss.
Did you know? ESCAPADE is funded by NASA’s Heliophysics Division as part of the Small Innovative Missions for Planetary Exploration program, utilizing a multi-institutional framework led by UC Berkeley’s Space Sciences Laboratory alongside Rocket Lab, NASA’s Goddard Space Flight Center, Embry-Riddle Aeronautical University, Advanced Space, and Blue Origin.
Frequently Asked Questions
What does ESCAPADE stand for?
ESCAPADE stands for Escape and Plasma Acceleration and Dynamics Explorers, a dual-spacecraft mission destined for Mars.
When will the spacecraft reach Mars?
According to mission plans, the spacecraft will arrive at Mars in September 2027 following an Earth gravity-assist flyby in November 2026.
What are the primary science goals of the mission?
The mission will investigate how solar wind interacts with the Martian environment and drives the loss of the planet’s atmosphere, while also searching for visible Martian auroras and studying surface thermal properties.
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