MANNED SPACEFLIGHT A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site ingress The act of, or the mechanism for, entrance to an enclosure. In spacecraft this can relate to the act of a crew member entering the space vehicle, or it can describe the entrance chamber, pressure lock, and hatchways. Related category    • MANNED SPACEFLIGHT Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP