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Loading contentUnited Launch Alliance is an American launch service provider, a joint venture of Boeing and Lockheed Martin, that operates the Atlas and Delta families of rockets.
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Scientific entity. See the evidence framework and authority dashboard.
How United Launch Alliance connects across Asteria Star — scientific, cultural, and astrological links are kept separate.
Atlas V is an expendable launch vehicle operated by United Launch Alliance that has launched numerous NASA science and planetary missions.
A heavy-lift expendable rocket by United Launch Alliance, retired in 2024, used for national-security and high-energy science launches such as Parker Solar Probe.
United Launch Alliance's successor to the Atlas V and Delta IV families.
A long-running U.S. launch-vehicle family that evolved from an early ICBM into the modern Atlas V operated by United Launch Alliance.
A prolific U.S. launch-vehicle family spanning six decades, from the Thor-derived Delta through the Delta II and the hydrogen-fueled Delta IV, retired in 2024.
A highly reliable medium-lift workhorse that launched GPS satellites and many NASA planetary missions, including the Mars rovers Spirit and Opportunity and the Kepler telescope.
A private company that develops launch vehicles, spacecraft, or satellites — increasingly under contract to space agencies. SpaceX, Blue Origin, Rocket Lab, and the established aerospace primes span the field.
The American Association of Variable Star Observers — for more than a century, the organisation that gathers variable-star observations from amateurs worldwide into a single database that professional astronomers draw on. The model for how amateur and professional astronomy work together.
The Agência Espacial Brasileira is the civilian agency responsible for Brazil's space programme.
The Association of Lunar and Planetary Observers, which coordinates amateur observation of the Moon, the planets, comets, and asteroids — organising observing programmes and archiving the results so that amateur monitoring of the Solar System adds up to something lasting.
Arianespace is a European launch service provider that markets and operates launches of the Ariane family of rockets from the Guiana Space Centre.
The Agenzia Spaziale Italiana is Italy's national space agency, a significant contributor to ESA and to international planetary science missions.
A commercial operator of a low-Earth-orbit constellation for rapid-revisit Earth imaging.
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Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.