Family-level launch record combining canonical variants, historical missions, public cadence forecasts, and available payload performance specs.
Historical missions are grouped by actual launch year. Forecast cadence uses family-level launch-rate rows.
| Year | Historical missions | Forecast launches |
|---|---|---|
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 2 | 0 |
| 2019 | 2 | 0 |
| 2020 | 2 | 0 |
| 2021 | 2 | 0 |
| 2022 | 2 | 0 |
| 2023 | 1 | 0 |
| 2026 | 0 | 3 |
| 2027 | 0 | 3 |
| 2028 | 0 | 3 |
| 2029 | 0 | 3 |
| 2030 | 0 | 3 |
| 2031 | 0 | 3 |
| 2032 | 0 | 3 |
| 2033 | 0 | 3 |
| 2034 | 0 | 3 |
Payload capacity by variant and target orbit when structured capacity rows are available.
| Variant | Orbit | Capacity | Altitude | Inclination | Source |
|---|---|---|---|---|---|
Antares 330 | LEO | 10,500 kg | Unknown | 51.6 deg | Northrop Grumman Antares Rocket |
Latest launched missions using variants in this family.
| Mission | Variant | Launch |
|---|---|---|
| S.S. Laurel Clark Mission | Antares 230+ | Aug 2, 2023 |
| S.S. Sally Ride Mission | Antares 230+ | Nov 7, 2022 |
| S.S. Piers Sellers Mission | Antares 230+ | Feb 19, 2022 |
| S.S. Ellison Onizuka Mission |
Canonical variants rolled up into this launch vehicle family.
| Variant | Stages | Missions | Status |
|---|---|---|---|
Antares 110 | Not stated | 2 | Retired |
Antares 120 | Not stated | 2 | Retired |
Antares 130 | Not stated | 1 | Retired |
Antares 230 | Not stated | 5 | Retired |
| 2035 | 0 | 3 |
| 2036 | 0 | 3 |
| 2037 | 0 | 3 |
| 2038 | 0 | 3 |
| 2039 | 0 | 3 |
| 2040 | 0 | 3 |
| 2041 | 0 | 3 |
1 launch location represented.
| Year | Location | Launches | Confidence | Basis |
|---|---|---|---|---|
| 2026 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2027 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2028 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2029 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2030 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2031 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2032 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2033 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2034 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2035 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2036 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2037 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2038 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2039 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2040 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. |
| 2041 | Wallops Flight Facility / MARS | Pad 0A | 3 | 35% | Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence. Site-year coverage backfill copied... |
Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence.
Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence.
Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence.
Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence.
Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence.
Antares 230+ |
| Aug 10, 2021 |
| S.S. Katherine Johnson | Antares 230+ | Feb 20, 2021 |
| S.S. Kalpana Chawla Mission | Antares 230+ | Oct 3, 2020 |
| S.S. Robert Lawrence Mission | Antares 230+ | Feb 15, 2020 |
| S.S. Alan Bean | Antares 230+ | Nov 2, 2019 |
Upcoming mission rows with announced launch timing.
| Mission | Variant | Announced |
|---|---|---|
No forecasted missionsNo upcoming announced mission rows are linked to this vehicle family. | ||
Antares 230+ | Not stated | 8 | Retired |
Antares 330 | Not stated | 0 | Development |
Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence.
Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence.
Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence.
Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence.
Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence.
Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence.
Northrop Grumman describes Antares 330 for Cygnus cargo service; model as up to three annual launches for CRS-class cadence.
Antares closed a $96 million Series B funding round led by Shine Capital.
Antares plans to propose for NASA’s Fission Surface Power program, aiming to deliver 100 kWe of nuclear power on the lunar surface by 2030.
Antares is building a 145,000-square-foot facility in Torrance, California, capable of producing 10 units per year.
Antares has raised more than $130 million to date.
Antares plans to compete under JANUS to provide resilient power for critical Pentagon infrastructure.
Antares is developing a 145,000-square-foot manufacturing complex in Torrance, California, designed to produce up to 10 microreactor units a year.
Antares operates across Torrance, California; Idaho Falls, Idaho; and Aiken, South Carolina.
Antares plans to conduct a first-of-a-kind electricity-producing demonstration unit in 2027.
Antares plans a low-power test reactor demonstration before July 4, 2026.
Antares has secured contracts with the U.S. Air Force, U.S. Space Force, the Defense Innovation Unit (DIU), and NASA to advance technology maturation and demonstration.
Antares will propose a system for NASA's Fission Surface Power program, aiming to deploy 100 kWe of nuclear power on the lunar surface by 2030.
In April, DIU selected Antares under the Advanced Nuclear Power for Installations program to supply nuclear power to Department of War installations.
In August, Antares received an allocation of High-Assay Low-Enriched Uranium fuel feedstock from the U.S. Department of Energy.
During the summer, Antares and NASA conducted an electrically heated demonstration of the reactor system at Marshall Space Flight Center in Huntsville, Alabama.
Antares currently employs about 60 staff.
Shine Capital led the Series B funding round for Antares.
Antares closed a $96 million Series B funding round.
SEOPS has previously flown payloads aboard Northrop Grumman’s Antares rockets.
Since the retirement of Antares, SEOPS has operated exclusively on SpaceX rideshare missions.
Launch Pad-0A at MARS will be configured to launch Alpha as early as 2025 in addition to supporting Antares 330 and the Medium Launch Vehicle (MLV).