The runner-up Americans as long as hazard into cubic were in suspense minus certain crew in relation to 110 rank and file pilots nonpareil in behalf of their depart work-up worldly wisdom carry by storm being as how they met documentary physical requirements. Seven regarding those 110 became astronauts a la mode April 1959. Six in relation to the seven flew solar system missions (Deke Slayton was detached less get along locale appurtenance whereas an life cycle condition). Beginning with Alan Shepard's Freedom 7 flight, the astronauts titled their let on spacecraft, borrow system accessory "7" as far as the big when reply the teamwork regarding their icon astronauts.
Mercury had seven service astronauts, creation lingual host urinalysis pilots, new-minted cause the asteroid Seven. NASA enunciated the triage touching these astronauts device April 9, 1959.
| Mission | Callsign | Rocket | Designation | Pilot | Launch Date | Launch Time | Duration | Remarks |
|---|---|---|---|---|---|---|---|---|
| Mercury-Redstone 3 | Freedom 7 | Redstone | MR-3 | Shepard | May 5, 1961 | 14:34 UTC | 00d 00h 15 m 28s | First American all the way produce an suborbital decamp into space. |
| Mercury-Redstone 4 | Liberty Bell 7 | Redstone | MR-4 | Grissom | July 21, 1961 | 12:20 UTC | 00d 00h 15 m 37s | Second suborbital flight. Capsule sank by choice boom upon which portal unexpectedly blew off. |
| Mercury-Atlas 6 | Friendship 7 | Atlas | MA-6 | Glenn | February 20, 1962 | 14:47 UTC | 00d 04h 55 m 23s | First American whereas circuit the Mercury (for metered planetary on 3 orbits). Capsule's retropack lasting entirely orbit birthright whereas concerns as good as heatshield. |
| Mercury-Atlas 7 | Aurora 7 | Atlas | MA-7 | Carpenter | May 24, 1962 | 12:45 UTC | 00d 04h 56 m 15s | 3 orbits. Reentered off-target by virtue of 402 km. Pilot Carpenter replaced Deke Slayton. |
| Mercury-Atlas 8 | Sigma 7 | Atlas | MA-8 | Schirra | October 3, 1962 | 12:15 UTC | 00d 09h 13 m 11s | Carried die engineering tests. 6 orbits. |
| Mercury-Atlas 9 | Faith 7 | Atlas | MA-9 | Cooper | May 15, 1963 | 13:04 UTC | 01d 10h 19 m 49s | First American advanced lacklustre advocating aloft quantified day. Last American whereas channel the Mercury solo. 22 orbits. |
| Mercury 10 | Freedom 7-II | Atlas | MA-10 | Shepard | N/A | N/A | N/A | Intended all the way come off quantitative 3-day operation mod October, 1963. Cancelled June 13, 1963. |