Helios-A and Helios-B (also known as Helios 1 and Helios 2), are a pair of probes launched into heliocentric orbit for the purpose of studying solar processes. A joint venture of the Federal Republic of Germany (West Germany) and NASA, the probes were launched from the John F. Kennedy Space Center at Cape Canaveral, Florida, on Dec. 10, 1974, and Jan. 15, 1976, respectively.
Latest from Copernical Team
- Hera's Mars flyby guided impact study of Deimos moon
- Sentinel-3 provides faster data for Europe fires
- Phoenix 3: concept study for a reusable European spacecraft
- Hubble & Gaia solve our galaxy's merger mystery
- Total solar eclipse 2026 (Official ESA broadcast)
- How digital twins can strengthen the resilience of position, navigation and timing capabilities
- Watch Sophie Adenot’s spacewalk live
- Week in images: 10-14 August 2026
- Proba-3’s eclipse hours before totality in Europe
- A double eclipse for Proba-3













