description STEREO-B Overview
One of two NASA spacecraft launched in 2006 for stereoscopic solar observation; contact was lost in 2014 and briefly restored in 2016 before being permanently lost.
insights Why this score
STEREO-B ranks #92 of 101 in the Spacecraft ranking, behind Tiangong-1, ahead of Space Shuttle Challenger.
Valuable early mission contribution, but loss of contact and incomplete later operations reduce consensus.
help STEREO-B FAQ
How good is STEREO-B?
STEREO-B scores 6.80/10 (Fair) on Lunoo, making it rated in the Spacecraft category. Valuable early mission contribution, but loss of contact and incomplete later operations reduce consensus.
What are the best alternatives to STEREO-B?
See our alternatives page for STEREO-B for a ranked list with scores. Top alternatives include: STEREO-A, SDO (Solar Dynamics Observatory), ISEE-3 / ICE.
How does STEREO-B compare to STEREO-A?
See our detailed comparison of STEREO-B vs STEREO-A with scores, features, and an AI-powered verdict.
Is STEREO-B worth it in 2026?
With a score of 6.80/10, STEREO-B is a solid option in Spacecraft. See all Spacecraft ranked.
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