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Mars
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Mars
Mars
Martian year
seasons of Mars The interactive title page shows the planet Mars. Mars: last day of spring Mars polar water-ice cap Mars: storm dust devil on Mars ground frost on Mars
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Mars
Mars summary
Quizzes
View of the Andromeda Galaxy (Messier 31, M31).
Astronomy and Space Quiz
The orbits of the planets and other elements of the solar system, including asteroids, Kuiper belt, Oort cloud, comet
Space Odyssey
Saturn. Saturn and its rings. Second largest planet of the solar system. Space Art
Planets and the Earth’s Moon
1 July 2002: The Solar and Heliospheric Observatory (SOHO) satellite reveals a massive solar eruption more than 30 times the Earth's diameter. The eruption formed when a loop of a magnetic field over the surface of the Sun trapped hot gas.
Brightest Star in the Solar System
Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
All About Astronomy
Related Questions
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Remarkable new details of Pluto's largest moon Charon are revealed in this image from New Horizons' Long Range Reconnaissance Imager (LORRI), taken late on July 13, 2015 from a distance of 289,000 miles
Why Is Pluto No Longer a Planet?
Solar system illustration. (Sun; planets)
A Model of the Cosmos
Mars rover. Mars Pathfinder. NASA. Sojourner.
10 Important Dates in Mars History
Galaxy clusters like Abell 2744 can act as a natural cosmic lens, magnifying light from more distant, background objects through gravity. NASA's James Webb Space Telescope may be able to detect light from the first stars in the universe if they are gravitationally lensed by such clusters. (astronomy, space exploration, galaxies)
How Fast Is the Universe Expanding?
Polar bear leaping among ice floes at Spitsbergen, Svalbard archipelago, Norway, the Arctic. Sea ice climate change mammal jump global warming
All 81 References in Fall Out Boy’s “We Didn’t Start the Fire,” Explained
Discover
The Colosseum, Rome, Italy. Giant amphitheatre built in Rome under the Flavian emperors. (ancient architecture; architectural ruins)
New Seven Wonders of the World
NBA Lakers Celtics Finals Kevin Garnett shooting.
10 Great Sports Rivalries
Agnes with a lamb near her feet. St. Agnes (Saint Agnes) design drawing for stained glass window by J&R Lamb Studios, ink, mount size 10.5 x 14.5 in.
Roman Catholic Saints
All Saints Day. All Souls Day. Candles in cemetery in Poland on All Saints Day, November 1. All Souls Day, November 2. Christian church, All Hallows, Solemnity of All Saints, Feast of All Saints, purgatory, Roman Catholic church
7 Unique Burial Rituals Across the World
Submerged sperm whale off east Sri Lanka coast, mammal
How Did the Sperm Whale Get Its Name?
Flags of the countries of the world (flagpoles).
How Many Countries Are There in the World?
Ice Sledge Hockey, Hockey Canada Cup, USA (left) vs Canada, 2009. UBC Thunderbird Arena, Vancouver, BC, competition site for Olympic ice hockey and Paralympic ice sledge hockey. Vancouver 2010 Olympic and Paralympic Winter Games, Vancouver Olympics
10 Best Hockey Players of All Time

Mars: Related Content

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Billionaire spacewalker highlights Mars trip for astronauts in his bid to become NASA's next chief • Apr. 9, 2025, 1:26 PM ET (AP)

Photos and Videos

Mars
seasons of Mars
Mars: last day of spring
Mars polar water-ice cap
Mars: storm
dust devil on Mars
ground frost on Mars
south polar region of Mars
sand dunes on Mars
topographic map of Mars
Mars
Martian year
simulated flight over Mars's surfaceA Simulated
Mars's moons explained
Mars exploration: Opportunity and Curiosity rovers
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1 July 2002: The Solar and Heliospheric Observatory (SOHO) satellite reveals a massive solar eruption more than 30 times the Earth's diameter. The eruption formed when a loop of a magnetic field over the surface of the Sun trapped hot gas.
Brightest Star in the Solar System
Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
All About Astronomy
View of the Andromeda Galaxy (Messier 31, M31).
Astronomy and Space Quiz
This artist's concept illustrates Kepler-16b, the first planet known to definitively orbit two stars -- what's called a circumbinary planet. The planet, which can be seen in the foreground, was discovered by NASA's Kepler mission. The two orbiting stars r
Extrasolar Planets
Saturn. Saturn and its rings. Second largest planet of the solar system. Space Art
Planets and the Earth’s Moon
The orbits of the planets and other elements of the solar system, including asteroids, Kuiper belt, Oort cloud, comet
Space Odyssey
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Buzz Aldrin. Apollo 11. Apollo 11 astronaut Edwin Aldrin, photographed July 20, 1969, during the first manned mission to the Moon's surface. Reflected in Aldrin's faceplate is the Lunar Module and astronaut Neil Armstrong, who took the picture.
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Buzz Aldrin. Apollo 11. Apollo 11 astronaut Edwin Aldrin, photographed July 20, 1969, during the first manned mission to the Moon's surface. Reflected in Aldrin's faceplate is the Lunar Module and astronaut Neil Armstrong, who took the picture.
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View of the Andromeda Galaxy (Messier 31, M31).
Astronomy and Space Quiz
List
Mars rover. Mars Pathfinder. NASA. Sojourner.
10 Important Dates in Mars History
Demystified
Remarkable new details of Pluto's largest moon Charon are revealed in this image from New Horizons' Long Range Reconnaissance Imager (LORRI), taken late on July 13, 2015 from a distance of 289,000 miles
Why Is Pluto No Longer a Planet?