SpaceX designs, manufactures and launches advanced rockets and spacecraft.

SpaceX filed confidentially for an IPO on April 1, 2026, aiming for a valuation of $1.75 trillion with a potential listing in June. If successful, this would mark the largest IPO in history.

IBM's 4 Pi aerospace computers were integral to the Space Shuttle's first flight on April 12, 1981, managing critical systems below the crew deck. A fifth computer was available as a backup in case of a catastrophic failure of the primary systems.