Spaceflight technology

proposed type of space transportation system

thumb|An expendable dropsonde used to capture weather data. The telemetry consists of sensors for pressure, temperature, and humidity and a wireless transmitter to return the captured data to an aircraft. thumb|300px|A saltwater crocodile with a GPS-based satellite transmitter attached to its head for tracking Telemetry is the in situ collection of measurements or other data at remote points and their automatic transmission to receiving equipment (telecommunication) for monitoring. The word is derived from the Greek roots tele, 'far off', and metron, 'measure'. Systems that need external instr

method used to accelerate spacecraft

facility that manages aerospace vehicle flights

A rebreather is a breathing apparatus that absorbs the carbon dioxide of a user's exhaled breath to permit the rebreathing (recycling) of the substantial unused oxygen content, and unused inert content when present, of each breath. Oxygen is added to replenish the amount metabolised by the user. This differs from open-circuit breathing apparatus, where the exhaled gas is discharged directly into the environment. The purpose is to extend the breathing endurance of a limited gas supply, while also eliminating the bubbles otherwise produced by an open circuit system. The latter advantage over oth

launch into space propelled by means other than rockets

concept of an enormous artificial ring placed around the Earth that rotates at an angular rate that is faster than the rotation of the Earth

NASA vehicle which tested an inflatable reentry system

spacecraft launching method

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ground-based elements of a spacecraft system

European Space Agency reusable launcher prototype

thumb|upright=1.5|Ballute-equipped Mark 82 bombs, Mk-82AIRs, being dropped by an American [[F-111 attack aircraft]] A ballute (a portmanteau of balloon and parachute) is a parachute-like braking device optimized for use at high altitudes and supersonic velocities.

device used for untethered spacewalk during Project Gemini and Skylab

reusable rocket engine

vehicle designed for outer space, including both the launch vehicle and spacecraft

proposed form of a tower extending into space

program of the Deutsches Zentrum für Luft- und Raumfahrt

estimation of orbits of objects

thumb|Overview of the architecture of CALLISTO CALLISTO (Cooperative Action Leading to Launcher Innovation in Stage Toss-back Operations) is a reusable VTVL demonstrator propelled by a small 40 kN Japanese LOX-LH2 rocket engine. It is being developed jointly by the French (CNES), German (DLR), and Japanese (JAXA) national space agencies. thumb|Simulation of mass flow around CALLISTO thumb|Early illustration of CALLISTO thumb|Model of CALLISTO at Paris Air Show 2025 The goals for CALLISTO are to mature and demonstrate the technologies which are necessary to build and operate a reusable launch v

orbital recoverable launch vehicle of the European company ArianeGroup

Delta-Differential One-Way Ranging (or Delta-DOR, Δ-DOR for short) is an interplanetary radio-tracking and navigation technique.