The UNSC Tharsis was a UNSC Navy vessel that was present at the Second Battle of Harvest on March 1, 2526. It was destroyed by the single Covenant vessel's second salvo along with the UNSC Austerlitz and UNSC Midway.
- Halo: Evolutions - Essential Tales of the Halo Universe
- The Impossible Life and the Possible Death of Preston J. Cole (First appearance)
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