A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
the application of ballistics and celestial mechanics to the practical problems concerning the motion of rockets and other spacecraft.
Space Exploration Technologies Corporation, or SpaceX, is a private space exploration company. It was the world's first privately held company to successfully launch a cargo mission into space.
Questions about the science or exploration of the planet Mars.
Questions regarding the takeoff or the liftoff phase of the flight of a rocket and the set of activities required for preparation of the launch vehicle leading to it.
Questions regarding the boosters or thrusters used to propel man-made objects.
Questions about the International Space Station, a habitable man-made low Earth orbit satellite whose first component was launched in 1998 and used to conduct experiments for a wide variety of researc…
human made, such as communications and GPS satellites, orbital observatories and space stations, and other man-made object in permanent or semi-permanent orb…
Questions about Earth's Moon. Also for questions about spacecraft, manned missions, potential missions, etc. related to Earth's Moon.
Questions pertaining to activities of the National Aeronautics and Space Administration, a United States government agency that deals with space exploration and research.
Questions regarding the Falcon launch vehicle developed by SpaceX for medium payloads (15,000 lbs) to LEO and GEO (via GTO, second stage cannot inject into GEO direct)
Questions regarding the mechanics or attributes of objects falling 'around' other objects, thereby orbiting them.
Crewed spaceflight (also referred to as human spaceflight or manned spaceflight) is space travel with a crew aboard the spacecraft. When a spacecraft is crewed, it can be operated directly, as opposed…
Questions regarding the craft that house humans or equipment during space exploration.
Systems for propelling a spacecraft from one place to another, such as rockets.
NASA's Apollo program was a 17-mission program that focused on landing a human on the lunar surface. The program was the third human spaceflight by NASA, after Mercury and Gemini.
The Space Shuttle was a crewed, partially reusable low Earth orbital spacecraft operated by NASA from 1981 to 2011.
Questions related to the movement of human-made objects as they enter atmosphere of Earth or other planetary bodies with atmospheres from space after being successfully launched.
Questions regarding the specific part of flights, during which a spacecraft touches down on the solid ground of a celestial body.
Questions regarding Low Earth Orbit or LEO, which refers to orbits at an altitude between approximately 160 kilometers / 99 miles and 2,000 kilometers / 1,200 miles.
Questions about rocket oxidizer, propellant, reactive mass, or other fuels used in spacecraft or rockets.
Questions regarding information transfer between spacecraft, and between spacecraft and Earth.
Questions pertaining to the history of space exploration.
propel a spacecraft or a rocket. Questions about attitude control jets should be tagged "attitude".
a scientific robotic spacecraft. It explores space and/or other planetary bodies (planets, satellites, asteroids, ..). It can flyby, orbit, enter atmosphere of, land on or submerge in…
Questions regarding the design or design process for a propulsion system.
the use of propulsion systems to change the orbit of a spacecraft.
Questions regarding the attractive force present between two masses. If about research in artificial gravity (i.e. manmade substitutes for gravity), please use the artificial-gravity tag.
Questions regarding the formation of a new colony on another planet or other body.
Questions regarding an envelope of gasses surrounding a celestial body held in place by the body's gravity.
Questions about how space vehicles and related hardware are designed.
The study of planets, asteroids, comets, etc, including weather, geology, composition, etc. This tag should be used when the focus of the question is on the the science of a non-Earth non-star natural…
Questions on ascertaining, predicting, and controlling spatial orientation and rotation of spacecraft, and on forces that affect spatial orientation.
Questions regarding the path that a spacecraft will take due to forces acting on the spacecraft, such as gravitational or radiation from the sun.
SpaceX's heavy lift launcher, based on the Falcon 9, using two strap-on boosters with a center core.