Forty years after landing on the Moon, Neil Armstrong explains why the Apollo program successes were not miraculous.

Walking through the Paris air show last month, I was struck by the large number of companies exhibiting under one regional or cluster umbrella. There were, to mention a few, Aerospace Valley, Rockford Area Aerospace Network, Monterrey Aerocluster Mexico, Isle of Man Aerospace Cluster, Aero Montreal, Skywin Wallonie and Northwest Aerospace Alliance. Such groupings have a basic economic rationale: They allow small suppliers to be present at a show without bearing the full costs of renting their own stands in an exhibit hall.

Definition team sets Mars 2020 goals

Another test failure casts doubt on U.S. multibillion dollar shield

In the 1960s, NASA had a couple of ways to get to the surface of the Moon. They came together in this famous November 1969 photo of Apollo 12 Commander Pete Conrad examining the Surveyor 3 robotic lander, with the lunar module Intrepid that brought him to the Moon parked on the horizon. Those days are long gone now, but the U.S. space agency still wants to go to the Moon—for science and for exploration experiments.

After receiving initial FAA certification in March of a system combining satellite-based communications with helicopter health and usage monitoring systems (HUMS), Honeywell aims to evolve the capability for inflight broadband connectivity on passenger airliners. (Photo: Inmarsat)

Ariane 6 aims for rapid development and lower launch costs.

Any launch vehicle that flies as often as Russia's Proton is bound to have its share of mishaps. The venerable heavy-lifter has flown 388 missions since its first in 1965, 45 of which have been deemed total or partial failures.