An online resource established in 1996 covering space missions, satellites, launch vehicles and related space exploration activities. It includes directories such as a list of currently available satellite platforms organized by country and manufacturer.
A SpaceX simulator that familiarizes users with the controls of the interface NASA astronauts use to manually pilot the Dragon 2 vehicle to the International Space Station. Users practice rotation and position controls, and docking succeeds when all green numbers are below 0.2 and the rate is below -0.2 m/s.
The Energia-Buran Archive is an archive and directory of images from the Buran program, created for educational purposes. It organizes photographs of Buran orbiters, the Energia rocket, Polyus, Energia-M, the An-225 Mriya, the VM-T Atlant, Baikonur facilities, testing and research, and other spaceplanes, along with documents and illustrations.
Rgvaerialphotos is an educational resource for documentaries, courses, books, reference material, or self-learning.
Space Time is a browser-based 3D universe explorer built from astronomical catalogs, telescope surveys and computed motion. It covers the solar system, stars, deep-sky objects and the observed cosmic web in one continuous view, with no account required. It is free and requires no download.
A web page that maps the solar system to scale with the Moon at one pixel. It presents the Sun, planets and some moons in sequence across a long scroll, with notes on the large distances between them. It states that distances shown are averages and depend on orbital positions.
CelesTrak is a 501(c)(3) non-profit that provides orbital data and related resources to the space community. Its site offers NORAD GP element sets, a satellite catalog, conjunction reports, GPS data and space weather data. It notes that 5-digit catalog numbers ran out on 2026-07-11, so newly cataloged objects with 6-digit numbers lack GP data in TLE format.
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A SpaceX simulator that familiarizes users with the controls of the interface NASA astronauts use to manually pilot the Dragon 2 vehicle to the International Space Station. Users practice rotation and position controls, and docking succeeds when all green numbers are below 0.2 and the rate is below -0.2 m/s.
The Energia-Buran Archive is an archive and directory of images from the Buran program, created for educational purposes. It organizes photographs of Buran orbiters, the Energia rocket, Polyus, Energia-M, the An-225 Mriya, the VM-T Atlant, Baikonur facilities, testing and research, and other spaceplanes, along with documents and illustrations.
Rgvaerialphotos is an educational resource for documentaries, courses, books, reference material, or self-learning.
Space Time is a browser-based 3D universe explorer built from astronomical catalogs, telescope surveys and computed motion. It covers the solar system, stars, deep-sky objects and the observed cosmic web in one continuous view, with no account required. It is free and requires no download.
A web page that maps the solar system to scale with the Moon at one pixel. It presents the Sun, planets and some moons in sequence across a long scroll, with notes on the large distances between them. It states that distances shown are averages and depend on orbital positions.
CelesTrak is a 501(c)(3) non-profit that provides orbital data and related resources to the space community. Its site offers NORAD GP element sets, a satellite catalog, conjunction reports, GPS data and space weather data. It notes that 5-digit catalog numbers ran out on 2026-07-11, so newly cataloged objects with 6-digit numbers lack GP data in TLE format.
