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Research published in the journal Acta Astronautica has identified a new orbital trajectory that could significantly reduce the travel time for missions between Earth and Mars. The proposed path, which draws inspiration from the movement of asteroids, potentially shortens the transit period to a few months.

According to reporting by vnexpress.net on May 7, 2026, the discovery challenges existing limitations of interplanetary travel. Under current technological capabilities, the average distance of 225 million kilometers between the two planets requires a journey of seven to 10 months.

The time constraints of current missions extend beyond the transit itself. When accounting for the period required for the planets to realign for a return journey, a full round-trip mission can take nearly three years.

The new orbital approach could reduce the total duration of a round-trip mission by more than half. By utilizing trajectories modeled after asteroid movements, the transit time is reduced to a few months, potentially altering the logistical requirements for human spaceflight.

Researcher Suza expanded the study to analyze future planetary alignments to determine when these shortcuts could be utilized. The analysis identified specific windows of opportunity in 2027, 2029, and 2031.

The findings indicate that the window in 2031 offers the highest level of technical feasibility for implementing this new trajectory. This alignment would provide the most optimal conditions for a spacecraft to utilize the asteroid-inspired path to reach Mars more efficiently.

Reducing travel time is a critical factor for long-term space exploration. Shorter transit periods decrease the amount of life-support resources required and limit the duration that astronauts are exposed to deep-space radiation and the physiological effects of microgravity.