| Answer | Crossword Clue |
|---|---|
| SPUTNIK | First man-made space satellite |
| SOVIET | Like the first man-made space satellite |
| SPUTNIK | First man-made satellite |
| TELSTAR | First satellite to transmit a phone call through space, 1962 |
| GEOPHYSICALYEAR | Time for man-made satellite experiments. |
| birds | man-made object (as an aircraft, rocket, or satellite) that resembles a bird especially by flying or being aloft |
