Escape Velocity · v = √(2GM/r)
unseel.com · 11.2 km/s · orbital vs escape · black-hole limit
Launch speed — km/s
Outcome
Phase
Sub-orbital (falls back)
Circular orbit (7.9 km/s)
Escape (11.2 km/s = √2 × orbital)
Planet / gravity well
Unseel.com · Escape Velocity