The calculation is very involved, even for relatively small rockets.

For rockets and space vehicles, propellants usually take up 2/3 or more of their total mass.

After we land, we'll ask politely for rockets to get home with.

The nation's production lines for large unmanned rockets were shut down.

Modified mission symbols are not used for rockets and missiles.

Under his management the unique laboratory/experimental base provided complex ground working for rockets.

Do you realize how difficult it is to produce the high quality parts required for rockets?

For large rockets at close range, the acoustic effects could actually kill.

It also ended the use of black powder for big rockets.

After we land, we'll ask politely for rockets to get back to the Platform with.