description Phobos 1 Overview
Phobos 1 was a Soviet spacecraft launched in July 1988, the twin of Phobos 2 in a program intended to study Mars and place small landers on the Martian moon Phobos. Contact was lost in September 1988 en route to Mars after an erroneous ground command shut off the attitude-control thrusters, leaving the spacecraft unable to keep its solar panels pointed at the Sun, so its batteries ran down. Its sister craft Phobos 2 reached Mars the following year but was also lost before completing its mission.
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How good is Phobos 1?
Phobos 1 scores 3.15/10 (Poor) on Lunoo, making it rated in the Space Mission category. Failed en route after command error; limited science return and remembered mostly as a costly Soviet Mars program loss.
What are the best alternatives to Phobos 1?
See our alternatives page for Phobos 1 for a ranked list with scores. Top alternatives include: Phobos 2, Mars 3, Mars 2.
How does Phobos 1 compare to Phobos 2?
See our detailed comparison of Phobos 1 vs Phobos 2 with scores, features, and an AI-powered verdict.
Is Phobos 1 worth it in 2026?
With a score of 3.15/10, Phobos 1 is a solid option in Space Mission. See all Space Mission ranked.
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