Hellenic Space Dawn
| Operator |  EMTech Space, Hellenic Space Center,  European Space Agency |
|---|---|
| COSPAR ID | HELIOS: 2026-100E SELENE: 2026-100B |
| Website | https://hsd.emtech.global |
| Spacecraft properties | |
| Spacecraft type | 2x 8U CubeSat |
| Start of mission | |
| Launch date | 3 May 2026, 7:00 UTC |
| Rocket | Falcon 9 (CAS500-2 mission) |
| Launch site | SLC-4E |
| Contractor | SpaceX |
Hellenic Space Dawn (HSD) is a Greek space mission aiming to demonstrate communication technologies and on-board data processing for Earth observation applications.[1][2][3][4] The mission consist of two 8U CubeSat-type small satellites (Helios and Selene) equipped with laser communication terminals.[3] HSD was launched on 3 May 2026.[2][5][6][7][8][9][10]
Background
The mission was developed by the Greek group of companies EMTech Space with the support of the EU's and ESA's Greek CubeSat In-Orbit Validation programme.[2] The two spacecraft are based on the CubeSat bus developed by the Bulgarian company EnduroSat.[11] The mission's laser terminals were built by AAC Clyde Space.[12] The mission uses the EASE-Rise ground mission control solution by Telespazio Germany.[13]
See also
References
- ↑ Kulu, Erik. "Hellenic Space Dawn". Nanosats Database. Retrieved 2026-04-12.
- 1 2 3 "Seven missions launched to test optimised data transfer from space". www.esa.int. Retrieved 2026-04-12.
- 1 2 "Greek CubeSats ready for assembly". www.esa.int. Retrieved 2026-04-12.
- ↑ "HELLENIC SPACE DAWN". Geosystems Hellas S.A. Retrieved 2026-04-12.
- ↑ "CAS500-2 Mission". SpaceX. Retrieved 2026-04-30.
- ↑ "CAS500-2 & Others | Falcon 9 Block 5 | Next Spaceflight". nextspaceflight.com. Retrieved 2026-05-03.
- ↑ tovima.com (2026-05-03). "Greece Launches First Thermal Satellites to Boost Fire Detection and Climate Monitoring". tovima.com (in Greek). Retrieved 2026-05-03.
- ↑ Day, Eleanor (2026-05-03). "SpaceX launches CAS500-2 and 45 other payloads to Sun-synchronous orbit". NASASpaceFlight.com. Retrieved 2026-05-03.
- ↑ "Launch boosts European Earth monitoring and connectivity". www.esa.int. Retrieved 2026-05-04.
- ↑ Maták, Juraj. "Družice". Kozmonautika. Retrieved 2026-05-08.
- ↑ "Hellenic Space Dawn Mission Adopts ENDUROSAT CubeSat-Bus". Emtech. Retrieved 2026-04-12.
- ↑ "AAC Clyde Space delivers its first laser communication terminals | AAC Clyde Space". www.aac-clyde.space. 2025-07-14. Retrieved 2026-04-12.
- ↑ "Hellenic Space Dawn Mission Adopts Telespazio's EASE-Rise Mission Control Solution". www.telespazio.de. Retrieved 2026-04-12.
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