SN10 is a Starship Prototype similar in design to SN9. SN10 was destroyed during an explosion on the pad after landing.
The SN10 Starship performed a test flight similar to SN8 and SN9. It launched up to an altitude of 10 km or 33,000 ft, did a belly flop maneuver followed by a controlled descent to the landing pad. Despite successfully performing the landing flip maneuver with its three Raptor engines, its vertical velocity was too high on landing, damaging its structure and resulting in an explosive destruction a few minutes after touchdown.
Suborbital SN10 - Maiden Flight SpaceX Starship Landing Pad