Audio is an educational resource for documentaries, courses, books, reference material, or self-learning.
WikiSky.org is an interactive online sky map presenting itself as an interactive sky map. The site links to sections including Getting Started, Inhabited Sky, News@Sky, an astro photo forum, a blog, a FAQ, a press page and an API.
SpaceSim is a free 3D space simulator that runs in a browser. It offers travel across the Solar System, time changes, source-backed worlds and postcards, along with journeys such as a grand tour of the Solar System, an ISS trajectory view and a procedural stellar laboratory for known stellar objects.
TheCMB is a WebGL visualization of raw data from the Planck mission showing intensity fluctuations in the cosmic microwave background. The data is tiled over a sphere using the Healpix scheme, with up to 50 million pixels at the highest resolution, and the view can be controlled with the mouse and keyboard.
Nasahubble is an educational resource for documentaries, courses, books, reference material, or self-learning.
SolarHam is a space weather and aurora website founded in 2006. It provides real time data and new updates, including solar indices, imagery, flare probabilities and geomagnetic forecasts. Its help center explains space weather terms such as coronal holes, coronal mass ejections and geomagnetic storms, and notes that the section is being built.
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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WikiSky.org is an interactive online sky map presenting itself as an interactive sky map. The site links to sections including Getting Started, Inhabited Sky, News@Sky, an astro photo forum, a blog, a FAQ, a press page and an API.
SpaceSim is a free 3D space simulator that runs in a browser. It offers travel across the Solar System, time changes, source-backed worlds and postcards, along with journeys such as a grand tour of the Solar System, an ISS trajectory view and a procedural stellar laboratory for known stellar objects.
TheCMB is a WebGL visualization of raw data from the Planck mission showing intensity fluctuations in the cosmic microwave background. The data is tiled over a sphere using the Healpix scheme, with up to 50 million pixels at the highest resolution, and the view can be controlled with the mouse and keyboard.
Nasahubble is an educational resource for documentaries, courses, books, reference material, or self-learning.
SolarHam is a space weather and aurora website founded in 2006. It provides real time data and new updates, including solar indices, imagery, flare probabilities and geomagnetic forecasts. Its help center explains space weather terms such as coronal holes, coronal mass ejections and geomagnetic storms, and notes that the section is being built.
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.
