Recordeddatespace
Mariner 2 passes Venus — the first successful planetary flyby
Passed Venus at about 34,800 km, returning the first close measurements of another planet and confirming a surface hot enough to melt lead. Encounter class: flyby.
Historical — it happened, and the record is settled.
Subjects
Evidence
Partly verified — Core facts are sourced; some optional detail is deliberately absent.
NSSDCA master catalogue — Mariner programme
Launch dates, flyby dates and gravity-assist record for the Mariner planetary flybys.
NASA Space Science Data Coordinated Archive · Partly verified
NSSDCA master catalogue, Mariner 2, 4 and 10 entries
Recorded on Mariner 2
- Mariner 2 passes Venus — the first successful planetary flyby
- Mariner 10 uses Venus to reach Mercury — the first gravity assist to another planet
- Galileo takes a gravity assist at Venus
Related
Related because they share a subject in the Atlas — never because the text looks similar.