As per Albert Einstein "Coincidence is God's way of remaining anonymous"
Every American who has died in a spacecraft has done so within one calendar week
January 27, 1967, tragedy struck the Apollo program when a flash fire occurred in a command module during a launch pad test Three astronauts died in this tragic accident.
January 28, 1986 Destruction of the space shuttle Challenger - In an odd coincidence, the start of structural assembly of the Challenger crew module began January 28, 1979 7 years to the day from when she would be lost.
February 1, 2003 Destruction of the space shuttle Columbia
All within the same week, different years, but the same time frame. 17 Astronauts Killed
Challenger had the first teacher in space.
Columbia had the first Israeli in space.
"There's a coincidence today. On this day three hundred and ninety years ago the great explorer Sir Francis Drake died aboard ship off the coast of Panama. In his lifetime the great frontiers were the oceans, ...." -Ronald Reagan [Space Shuttle Challenger]
On January 27, 1967, as Grissom, White and Chafee were dieing in the capsule of Apollo 1the UN Space Treaty convention was convening.
It's a tragic coincidence this treaty was signed January 27, 1967, the day Grissom, White and Chafee died in the capsule of Apollo 1 - Principles of Clinical Medicine for Space Flight
Richard Hoagland suggested that the fire was seemigly coordinated to take place at the same moment as a White House reception honoring the signing of the UN space treaty of 1967. - Space Travelers and the Genesis of the Human Form: Evidence of Intelligent Contact in the Solar System
Space Shuttle Columbia Coincidences
Where the shuttle crashed -Texas is the Home State of George W. Bush, The US President at the time and it's former Governor. Where it took from is Florida, the Home State of his Brother Jeb Bush Governor of that State at the time.
Apollo 13 Coincidences
"Apollo 13 lifted off at (gulp!) 13:13 Houston time, April 11, 1970. Two days later, on April 13, it had a near-fatal explosion onboard caused by a fault in electrical circuit 13." Launched on April 11, 1970 (the sum of 4, 11 and 70 equals 85 - which when added together comes to 13), from Pad 39 (three times 13) at 13:13 local time, and struck by an explosion on April 13.
MIR 23 Space Station
On March 14, 1997, NASA representative states that MIR 23 space station is having problems resulting from the February 23, 1997 fire and has used 23 of their oxygen-generating canisters. It is the 23rd day aboard for the Russian crew. Progress 233 supply vehicle has problems of its own and cannot redock with MIR. Saturn V (2+3=5) rockets were used to launch the Apollo missions to the moon.
The longitudinal coordinates of the Apollo 11 moon landing were 23.63 degrees. (2+3=5 while 6+3=9=3²) What's with all the 23's ?