HomeFull speed ahead. Keep track of advancements in every frontier
StarshipSpaceX—Falcon 9 & Falcon HeavySpaceX—StarshipSpaceX—SpaceX—Starship HLSSpaceX—SpaceX—DragonSpaceX—Starship HLSSpaceX—Starship HLSSpaceX—StarshipSpaceX—DragonSpaceX—StarshipSpaceX—
Starship HLS
Photo: Steve Jurvetson · CC BY 2.0 (opens commons.wikimedia.org)

Starship HLS

by SpaceXUS

ProtoStage 2 of 5

In development; an Earth-orbit docking test on Artemis III (2027), crewed landing on Artemis IV (2028).

Updated 15 Jul 2026Checked 25 Sep0 updates this week

Milestones

Next · Refuelling test in orbit
  1. Selected by NASA as Artemis Human Landing System ($2.89B)16 Apr 2021Complete.
  2. Option B awarded for a second crewed landing ($1.15B)Nov 2022Complete.
  3. Artemis III changed to an Earth-orbit docking test2026Complete.
  4. Refuelling test in orbitNot yet reached.
  5. Uncrewed lunar landing demonstrationNot yet reached.
  6. Crewed lunar landing (Artemis IV)Target 2028+36 mooriginally 2025Not yet reached.

Most important updates

  • 15 Jul 2026
  • 30 Oct 2025
  • 20 Oct 2025
  • 4 Nov 2021
  • 30 Jul 2021

Upcoming

  1. 2027Artemis III Earth-orbit docking test with Orion (next)
  2. 2028Crewed lunar landing (Artemis IV)+36 mooriginally 2025

Current obstacles

  • Many tanker flights per tripEach Moon trip needs a depot filled by many tanker launches in a row, so launch rate and fuel boil-off decide if it works.

Physics limits

  • Cryogenic fuel boils away while the lander waitsLiquid oxygen (−183 °C) and methane (−162 °C) absorb sunlight and heat from the ship. Over weeks of tanker launches and a lunar stay, boil-off eats margin that only insulation and fast refuelling can protect.
  • Landing blasts the Moon's surfaceWith no air to slow it, the lander brakes on engines alone. Their exhaust can fling dust and rocks outward at up to a kilometre or two per second, a hazard to the ship itself and anything nearby.
  • A tall lander on uneven ground can tipA 50 m ship has a high centre of gravity. On slopes or boulders of a few degrees, the margin before it topples shrinks, and there is no one to right it.

How it works

4 parts
Starship HLS's docking system on a motion test rig: the ring Orion's crew will dock to before transferring down to the Moon
Starship HLS's docking system on a motion test rig: the ring Orion's crew will dock to before transferring down to the MoonPhoto: SpaceX · Public domain (opens commons.wikimedia.org)
Refuel

Filled up in Earth orbit

The lander launches mostly empty. Around ten or more tanker Starships then deliver fuel to a depot, which tops up the lander for the trip to the Moon.

Meet

Waits for the crew near the Moon

It flies to a high, stretched orbit around the Moon, where astronauts arrive separately in NASA's Orion capsule and dock to cross over.

Land

Soft landing with engines up high

Main engines brake from orbit; near the ground, thrusters placed high on the hull take over so the blast doesn't dig craters or throw rocks at the ship.

Surface

An elevator to the ground

The crew cabin sits high on the hull. An elevator lowers astronauts and cargo to the surface; the same ship then lifts them back to Orion.

Update log

5 updates

Wed 15 Jul

  • Minor: RegulatorPartnership

Thu 30 Oct 2025

  • Minor: PressOther

Mon 20 Oct 2025

  • Major: PressCommercial

Thu 4 Nov 2021

  • Major: RegulatorRegulatory

Fri 30 Jul 2021

  • Major: RegulatorRegulatory

About SpaceX

The team behind Starship HLS

SpaceX

Starship, Falcon 9, Dragon, Starlink, xAI

SpaceX builds the reusable Falcon 9 rocket, the Dragon capsule, the Starlink internet satellites and the giant Starship. It flies most of the world's launches, merged with Elon Musk's xAI in Feb 2026 and listed on Nasdaq in June 2026.

  • Falcon 9 flew about 165 missions in 2025, most of them Starlink, on boosters now reflown 30+ times.
  • Starship V3 (Raptor 3, Pad 2) debuted in May 2026; Flight 14 in late September 2026 is planned as the first orbital Starship flight.
  • Starlink passed 12 million subscribers by mid-2026 and funds Starship; the June 2026 IPO raised about $86B.
Founded
200224 yrs
Headquarters
United States
Status
Public
Valuation
$2Tmarket capSep 2026
Raised
$1B1 round
Last round
IPO (Nasdaq) · $86B12 Jun 2026
Coverage
5 programs · 27 updateslatest 29 Aug 2026checked 25 Sep
Lead investors
Goldman SachsMorgan StanleyGoogleFidelity
Primer