| May sign |
| Star-sign |
| The Twins |
| Spacecraft |
| Zodiac sign |
| Star twins? |
| After Taurus |
| Zodiac twins |
| Zodiacal sign |
| Heavenly pair |
| Twins on high |
| Stellar twins |
| Pair, up there |
| Zodiac's Twins |
| Sign of spring? |
| U.S. spacecraft |
| Apollo preceder |
| May baby, maybe |
| Taurus follower |
| Mercury follower |
| Twins in the sky |
| Castor and Pollux |
| '60s NASA project |
| NASA vehicle name |
| Sign of the twins |
| Sign after Taurus |
| George Bush's sign |
| Program until 1966 |
| Sign before Cancer |
| Pre-Apollo project |
| Sign of the zodiac. |
| Broadway play: 1977 |
| Late-spring arrival |
| Twins constellation |
| Child born on June 1 |
| Mid-'60s NASA program |
| Aldrin's first Project |
| The Twins of the zodiac |
| Between Cancer and Taurus |
| Canadian television award |
| Early Cape Canaveral program |
| Early June baby - or babies? |
| First U.S. spacewalk mission |
| Award won 5 times by Peterson |
| Person born in early June, e.g. |
| Castor and Pollux's constellation |
| John F. Kennedy or George H. W. Bush |
| Mary-Kate and Ashley's sign, fittingly |
| Constellation containing Castor and Pollux |
| Project formally announced in January 1962 |
| Project that launched Houston Mission Control |