Science · Editorial deck
Missions & Telescopes
The spacecraft and observatories that explored our universe
Your path through the deck
Learn it chapter by chapter.
Start with a chapter that catches your eye, or mix a few together in your round.
- 01Human spaceflight and stations5 cards · ~1 min
- 02Robotic missions and planetary exploration11 cards · ~2 min
- 03Telescopes and observing the universe7 cards · ~1 min
Taste it
Three cards to begin.
Searchable preview
The questions inside.
01This mission put Armstrong and Aldrin on the Moon while Collins orbited overhead.RECALL
Apollo 11Apollo 11 landed Neil Armstrong and Buzz Aldrin on the Moon while Michael Collins orbited overhead.
Share this card ↗Source: Apollo 11 ↗02This multinational orbital outpost has hosted a continuous human presence since 2000.RECALL
International Space StationThe International Space Station has hosted a continuous human presence since 2000 through multinational cooperation.
Share this card ↗Source: International Space Station ↗03NASA operated this reusable crewed spacecraft programme for three decades before retiring it in 2011.IDENTIFY
Space Shuttle ProgramThe Space Shuttle flew as the first reusable crewed spacecraft across three decades before retiring in 2011.
Share this card ↗Source: Space Shuttle program ↗04This lunar mission returned safely after an oxygen-tank explosion forced the crew to abandon the landing.RECALL
Apollo 13Apollo 13's crew survived an oxygen tank explosion en route to the Moon and returned safely to Earth.
Share this card ↗Source: Apollo 13 ↗05NASA's return-to-the-Moon programme takes its name from Apollo's mythological twin sister.RECALL
Artemis ProgramNASA's Artemis program aims to return astronauts to the Moon and takes its name from Apollo's twin sister in myth.
Share this card ↗Source: Artemis program ↗06This farthest-travelling human-made spacecraft carries a golden record of life on Earth.RECALL
Voyager 1Voyager 1 has traveled farther than any other human-made object and carries a golden record of life on Earth.
Share this card ↗Source: Voyager 1 ↗07This spacecraft visited both Uranus and Neptune and launched before its similarly named sister probe.RECALL
Voyager 2Voyager 2 remains the only spacecraft to visit both Uranus and Neptune, and it launched before Voyager 1.
Share this card ↗Source: Voyager 2 ↗08This nuclear-powered Mars rover landed in 2012.IDENTIFY
Curiosity RoverCuriosity has explored Mars since 2012, powered by a radioisotope generator instead of solar panels.
Share this card ↗Source: Curiosity (rover) ↗09This Mars rover carried the helicopter that made the first powered flight on another planet.IDENTIFY
Perseverance RoverPerseverance searches for ancient microbial life on Mars and carried the helicopter that flew the first powered flight on another planet.
Share this card ↗Source: Perseverance (rover) ↗10This Saturn mission deployed a probe that landed on Titan.IDENTIFY
Cassini–HuygensCassini studied Saturn for over a decade while its Huygens probe made a landing on the moon Titan.
Share this card ↗Source: Cassini–Huygens ↗11This spacecraft made the first close flyby of Pluto before continuing into the Kuiper Belt.RECALL
New HorizonsNew Horizons performed the first close flyby of Pluto before continuing on to a distant Kuiper Belt object.
Share this card ↗Source: New Horizons ↗12This Mars mission delivered the wheeled rover Sojourner.RECALL
Mars PathfinderMars Pathfinder delivered the first wheeled rover, named Sojourner, to the Martian surface.
Share this card ↗Source: Mars Pathfinder ↗13China's lunar exploration programme takes its name from a Moon goddess.RECALL
Chang'e ProgramChina's Chang'e program has landed rovers on both sides of the Moon and takes its name from a lunar goddess.
Share this card ↗Source: Chinese Lunar Exploration Program ↗14This solar-powered spacecraft studies Jupiter's composition and magnetic field.RECALL
JunoJuno studies Jupiter's composition and magnetic field, running on solar power despite Jupiter's distance from the Sun.
Share this card ↗Source: Juno (spacecraft) ↗15This first spacecraft to orbit Jupiter found evidence of a subsurface ocean on Europa.IDENTIFY
Galileo (spacecraft)The Galileo spacecraft became the first to orbit Jupiter and found evidence of a subsurface ocean on the moon Europa.
Share this card ↗Source: Galileo (spacecraft) ↗16This early probe was the first spacecraft to cross the asteroid belt and carries a plaque depicting humanity.RECALL
Pioneer 10Pioneer 10 was the first spacecraft through the asteroid belt and carried a plaque describing Earth for any finder.
Share this card ↗Source: Pioneer 10 ↗17A 1993 servicing mission corrected this orbiting telescope's initially flawed mirror.IDENTIFY
Hubble Space TelescopeHubble's early flawed mirror was corrected on a 1993 servicing mission, after which it captured stunning deep-space images.
Share this card ↗Source: Hubble Space Telescope ↗18This infrared space telescope observes from near the Sun–Earth L2 point, beyond the Moon's orbit.RECALL
James Webb Space TelescopeThe James Webb Space Telescope observes mainly in infrared from a stable point far beyond the Moon's orbit.
Share this card ↗Source: James Webb Space Telescope ↗19Its 1957 launch made this Soviet craft the first artificial Earth satellite.RECALL
Sputnik 1Sputnik 1 became the first artificial satellite in orbit, and its 1957 launch helped ignite the space race.
Share this card ↗Source: Sputnik 1 ↗20This NASA telescope discovered thousands of exoplanets by measuring small dips in starlight.IDENTIFY
Kepler Space TelescopeKepler discovered thousands of exoplanets by detecting the tiny dips in starlight as planets passed in front of their stars.
Share this card ↗Source: Kepler space telescope ↗21This X-ray observatory is named after astrophysicist Subrahmanyan Chandrasekhar.IDENTIFY
Chandra X-ray ObservatoryChandra observes the universe in X-ray light and is named for astrophysicist Subrahmanyan Chandrasekhar.
Share this card ↗Source: Chandra X-ray Observatory ↗22This SpaceX rocket has a first stage designed to land and fly again.RECALL
Falcon 9Falcon 9 became the first orbital-class rocket capable of reflight, with a first stage that lands itself.
Share this card ↗Source: Falcon 9 ↗23These twin Mars rovers far outlasted their planned 90-day missions; one operated for nearly fifteen years.RECALL
Spirit and OpportunitySpirit and Opportunity vastly outlasted their planned 90-day missions, with Opportunity running for nearly fifteen years.
Share this card ↗Source: Mars Exploration Rover ↗
Ready when you are
Flip the first card.
Study at your pace, or test what stayed with you. Your local progress is saved as you go.