Clear Dark Sky is an educational resource for documentaries, courses, books, reference material, or self-learning.
Apollo in Real Time is a website presenting a real-time interactive journey through the Apollo missions, reliving each moment as it occurred. It consists entirely of historical mission material and offers missions Apollo 11, Apollo 13 and Apollo 17, with launch dates given.
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.
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.
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.
Rgvaerialphotos is an educational resource for documentaries, courses, books, reference material, or self-learning.
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.
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Apollo in Real Time is a website presenting a real-time interactive journey through the Apollo missions, reliving each moment as it occurred. It consists entirely of historical mission material and offers missions Apollo 11, Apollo 13 and Apollo 17, with launch dates given.
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.
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.
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.
Rgvaerialphotos is an educational resource for documentaries, courses, books, reference material, or self-learning.
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.
