Technology & Space
Twin NASA Spacecraft Prepare for Powered Earth Flybys on the Road to Mars
ESCAPADE's two probes will combine gravity assists with nine-minute engine burns before a ten-month cruise to Mars.
Two maneuvers on separate days
NASA's twin ESCAPADE spacecraft are scheduled to make powered Earth flybys on November 7 and November 9. Each probe will pass close to Earth and conduct a roughly nine-minute trans-Mars injection burn, using both gravity and propulsion to redirect toward Mars. NASA lists the first closest approach near 5 a.m. Eastern Saturday and the second near 6 a.m. Eastern Monday.
A different route to Mars
The spacecraft launched in November 2025 when Earth and Mars were poorly aligned for a direct, fuel-efficient transfer. They instead traveled in a looping path near the Earth-Sun L2 region and returned toward Earth as the planets moved into a better configuration. NASA describes this as the first successful powered Earth flyby attempted by a Mars-bound mission if the upcoming burns perform as planned.
Speed and course correction
The burns are expected to increase each spacecraft's speed by more than 1,000 miles per hour, to about 6.7 miles per second. The probes would then cruise for roughly ten months, with Mars arrival planned for September 7 and September 9, 2027. Mission controllers will assess the trajectories after the flybys and use later correction maneuvers to refine the approach.
The science at Mars
ESCAPADE is designed to study how the solar wind interacts with the Martian environment and contributes to atmospheric loss. NASA says the probes would become the first multi-spacecraft mission flying in formation around Mars. Using two coordinated platforms can help separate changes caused by location from changes occurring over time, a recurring challenge in measuring a dynamic space environment.
A visible but difficult target
NASA says observers in parts of the western United States and southern Australia may be able to see the refrigerator-sized spacecraft through telescopes, although they will be faint. The agency provides timing and trajectory resources but cautions implicitly through the technical requirements that this is not a naked-eye spectacle. Successful burns, rather than visibility from the ground, are the mission's central milestone.
Primary evidence
Reporting note: This independently composed article is based on the linked primary records. Publication and event dates are stated separately. Agency claims are identified as such; an allegation, charge or scheduled event is not presented as a finding, conviction or completed event. Readers should consult the official record for amendments and later action.