Celestia is a free space simulator that provides real-time 3D visualization of space. It displays objects and orbits based on scientific data and runs on Windows, Linux, macOS, iOS and Android. Users can travel through the solar system, to over 100,000 stars, or beyond the galaxy. Its catalogues are expandable with add-ons, and users can create their own objects and planetary systems.
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.
Artemis II Photo Timeline is an educational resource for documentaries, courses, books, reference material, or self-learning.
TheSkyLive provides information about celestial objects and tools for exploring and observing the night sky. It includes star maps, a 3D Solar System viewer, visibility listings for planets, comets and asteroids, and guides to eclipses and the Moon. Users can set an observing location, and without one the site defaults to Greenwich.
Stellarium is a free open source planetarium for computers. It shows a realistic sky in 3D, as seen with the naked eye, binoculars or a telescope, and offers time control, telescope control and a plugin system. The site describes it as easy to use and provides a features list and system requirements.
ViewSpace is a free, web-based collection of astronomy and Earth science videos and interactives. It offers image tours, image sliders, and a video library that let users explore the planet, solar system, galaxy, and universe. The project is developed by the Space Telescope Science Institute with NASA support and has been exhibited in museums, planetariums, and science centers since 2000.
SpaceFromSpace is an archive of satellite imagery that includes declassified Cold War reconnaissance photographs and modern spaceport views. Images are stitched and georeferenced from raw USGS datasets and presented on interactive maps, with galleries covering declassified, spaceport and recently added scenes.
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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.
Artemis II Photo Timeline is an educational resource for documentaries, courses, books, reference material, or self-learning.
TheSkyLive provides information about celestial objects and tools for exploring and observing the night sky. It includes star maps, a 3D Solar System viewer, visibility listings for planets, comets and asteroids, and guides to eclipses and the Moon. Users can set an observing location, and without one the site defaults to Greenwich.
Stellarium is a free open source planetarium for computers. It shows a realistic sky in 3D, as seen with the naked eye, binoculars or a telescope, and offers time control, telescope control and a plugin system. The site describes it as easy to use and provides a features list and system requirements.
ViewSpace is a free, web-based collection of astronomy and Earth science videos and interactives. It offers image tours, image sliders, and a video library that let users explore the planet, solar system, galaxy, and universe. The project is developed by the Space Telescope Science Institute with NASA support and has been exhibited in museums, planetariums, and science centers since 2000.
SpaceFromSpace is an archive of satellite imagery that includes declassified Cold War reconnaissance photographs and modern spaceport views. Images are stitched and georeferenced from raw USGS datasets and presented on interactive maps, with galleries covering declassified, spaceport and recently added scenes.
