Home › Library › Glossary › Human Spaceflight › Splashdown
👨‍🚀 Human Spaceflight

Splashdown

Also known as: Water Landing, Ocean Recovery

Quick answer

A splashdown is a spacecraft landing in water at the end of re-entry, descending under parachutes to an ocean recovery zone. Used by Apollo and revived by SpaceX's Dragon capsules, it lets a capsule land softly without landing rockets or a runway — at the cost of a naval recovery operation.

📘 Full definition✓ Reviewed 2026-09-07
A splashdown ends a capsule's re-entry in the ocean: after the heat shield has shed orbital speed and drogue chutes have stabilised the descent, main parachutes lower the spacecraft to the water at roughly walking-to-jogging pace — Dragon touches down under four mains at around 25 km/h. Water provides a vast, forgiving landing zone that demands neither the landing rockets of a propulsive system nor the precision of a runway, which is why NASA's Mercury, Gemini and Apollo capsules all splashed down, and why SpaceX's Crew Dragon returned the technique to service off the coasts of Florida and, latterly, California. The price is a recovery fleet: fast boats reach the capsule within minutes to check for propellant vapours and attach rigging, then a recovery ship hoists spacecraft and crew aboard. Splashdown contrasts with land touchdown under parachutes-plus-retrorockets (Soyuz, Starliner, Shenzhou) and runway landing (the Space Shuttle).
Descent speed
~25 km/h at impact
Dragon under four main parachutes
Used by
Mercury · Gemini · Apollo · Dragon
the American capsule tradition
Recovery time
Crew out in under an hour
fast boats first, then the recovery ship
Alternative
Land landing
Soyuz, Shenzhou & Starliner use retrorockets

Understanding Splashdown

Anatomy of a Dragon recovery

Dragon jettisons its trunk, performs the deorbit burn, and re-enters shielded by its ablative heat shield. Around 5.5 km altitude two drogue chutes deploy to stabilise and slow the capsule; four main parachutes follow near 2 km. After splashdown, fast boats verify the capsule is safe to approach, recover the parachutes and rig the spacecraft for lifting; the recovery ship's hydraulic cradle then hoists Dragon aboard, where medical teams meet the crew. The entire sequence from deorbit burn to crew egress typically takes under two hours.

Why America chose water and Russia chose land

Geography drove the split. The United States, launching east over the Atlantic and Pacific, always had ocean beneath its returning capsules and a blue-water navy to fetch them. The Soviet programme launched over the Eurasian landmass, so Soyuz perfected land recovery: parachutes plus solid retrorockets that fire a metre above the steppe to soften impact. Both traditions persist — Dragon splashes down, Soyuz and Shenzhou thump down — and each considers its own method the more sensible.

See it live Meet the ships that fish returning spacecraft out of the ocean — the full SpaceX recovery fleet, profiled. Explore the Recovery Fleet →
📖 Learn More

Frequently Asked Questions

Debris safety. Analysis showed Dragon's jettisoned trunk could survive re-entry, and Pacific recovery lets the trunk be deorbited over open ocean with the capsule, eliminating the small risk of debris reaching land that existed with the earlier Florida recovery zones.
It is firm but brief — astronauts compare it to a car ride ending in a solid jolt, softened by energy-absorbing seats. Sea state matters more than the impact itself; missions target calm recovery zones, and weather rules can delay a return by days.
Russia's Soyuz and China's Shenzhou descend to the steppe under parachutes with retrorocket cushioning, and Boeing's Starliner lands on airbags in the American southwest. Dragon is currently the only crewed capsule using ocean splashdown.

Sources & References

Definitions are reviewed against primary sources. Last reviewed: 2026-09-07.