Remove

1. March 28, 1996

What

1. Russian Mir Spa … (8)
2. Space Shuttle O … (6)
3. Earth (3)
4. Kvant 2 (1)

Where

1. Russia (8)
2. Washington, D.C … (3)
3. Florida (1)
4. Kennedy Space C … (1)

When

1. 1996 (8)
2. March 23, 1996 (8)
3. 31 March 1996 (7)
4. 28 March 1996 (1)