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  2. Mercury - NASA Science

    science.nasa.gov/mercury

    Mercury is the smallest planet in our solar system and the nearest to the Sun. Mercury is only slightly larger than Earth's Moon. Its surface is covered in tens of thousands of impact craters.

  3. Mercury Facts - Science@NASA

    science.nasa.gov/mercury/facts

    The smallest planet in our solar system and nearest to the Sun, Mercury is only slightly larger than Earth's Moon. From the surface of Mercury, the Sun would appear more than three times as large as it does when viewed from Earth, and the sunlight would be as much as seven times brighter.

  4. Project Mercury - NASA

    www.nasa.gov/project-mercury

    Project Mercury was the NASA program that put the first American astronauts in space. Astronauts made a total of six spaceflights during Project Mercury. Two of those flights reached space and came right back down.

  5. Mercury: Exploration - NASA Science

    science.nasa.gov/mercury/exploration

    NASA's MESSENGER spacecraft flew by Mercury three times and orbited the planet for four years before crashing on its surface at the end of its mission. The European Space Agency and JAXA launched a joint mission to Mercury in 2018.

  6. MESSENGER - NASA Science

    science.nasa.gov/mission/messenger

    MESSENGER (Mercury Surface, Space Environment, Geochemistry and Ranging) was the seventh Discovery-class mission, and the first spacecraft to orbit Mercury. Its primary goal was to study the geology, magnetic field, and chemical composition of the planet.

  7. Mercury - NASA Science

    science.nasa.gov/gallery/mercury

    During MESSENGER's four-year orbital mission, the spacecraft's XRS instrument mapped out the chemical composition of Mercury and discovered striking regions... The view shown here is an orthographic projection of Mercury's south polar region, colored by an illumination map.

  8. A Closer Look at Mercury’s Spin and Gravity Reveals the Planet...

    www.nasa.gov/solar-system/a-closer-look-at-mercurys-spin-and-gravity-reveals...

    Mercurys interior has cooled more rapidly than our planet’s. Mercury may help us predict how Earth’s magnetic field will change as the core cools.” To figure out what the core of Mercury is made of, Genova and his colleagues had to get, figuratively, closer.

  9. Solar System Exploration: Mercury - NASA

    www.nasa.gov/stem-content/solar-system-exploration-mercury

    NASA-developed Technology Supports Ocean Wind Speed Measurements from Commercial Satellite

  10. Mercury Resources - NASA Science

    science.nasa.gov/solar-system/resources/resource-packages/mercury-resources

    This information sheet features images of Mercury taken from the Mariner 10 and MESSENGER missions along with general information, significant dates and interesting facts about Mercury.

  11. Tectonically Active Planet Mercury - NASA

    www.nasa.gov/image-article/tectonically-active-planet-mercury

    New NASA-funded research suggests that Mercury is contracting even today, joining Earth as a tectonically active planet. Images obtained by NASA’s MESSENGER spacecraft reveal previously undetected small fault scarps— cliff-like landforms that resemble stair steps.

  12. Mercury - NSSDCA

    nssdc.gsfc.nasa.gov/planetary/planets/mercurypage.html

    Mercury Feature Names and Locations; Planetary Positions; Terrestrial Planet Mileage Guide; The Voyage of Mariner 10: Mission to Venus and Mercury; Atlas of Mercury; More about Mercury

  13. NASA Spacecraft Achieves Unprecedented Success Studying Mercury

    www.nasa.gov/.../nasa-spacecraft-achieves-unprecedented-success-studying-mercury

    After extraordinary science findings and technological innovations, a NASA spacecraft launched in 2004 to study Mercury will impact the planet’s surface, most likely on April 30, after it runs out of propellant.

  14. Mercury has a layer of diamond 10 miles thick, NASA spacecraft...

    www.space.com/mercury-diamond-layer-10-miles-thick-nasa-messenger

    Using data from NASA's MESSENGER spacecraft, scientists have determined that the solar system's tiniest planet, Mercury, hides a not-so-tiny secret: a 10-mile-thick mantle of diamond.

  15. Mercury Stories - NASA Science

    science.nasa.gov/mercury/stories

    Mercury, our smallest planetary neighbor, has very little to call an atmosphere, but it does have a strange weather pattern: morning micro-meteor showers. Recent modeling along with previously published results from NASA’s MESSENGER spacecraft — short for Mercury Surface, Space…

  16. Project Mercury - Wikipedia

    en.wikipedia.org/wiki/Project_Mercury

    The Mercury 13 program was not officially conducted by NASA. It was created by NASA physician William Randolph Lovelace, who developed the physical and psychological tests used to select NASA's first seven male astronauts for Project Mercury. The women completed physical and psychological tests, but were never required to complete the training ...

  17. Mercury 6 | ISDC® 2017 - National Space Society

    isdc2017.nss.org/mercury-6/index.html

    He ended up working in astronautics, specifically developing and testing the communications system and associated test equipment on NASA’s Mercury program. He was on hand for some of America’s earliest Redstone launches, on the ground floor in the blockhouse alongside Wernher von Braun, Kurt Debus, and the nation’s Mercury astronauts.

  18. Solar System Tour - Mercury - NASA

    science.gsfc.nasa.gov/690/solar-system-tour/Mercury.html

    The closest planet to the Sun, Mercury orbits in only 88 Earth days. However, its rotation is so slow that a "day" on Mercury lasts twice as long as its year. Global view of Mercury, as seen by MESSENGER

  19. Project Mercury - A Chronology. Appendix 9 - NASA

    www.nasa.gov/history/SP-4001/app9.htm

    Research and development of Project Mercury was literally a national effort, especially when considering the number of contractors, subcontractors, and suppliers involved in the program. McDonnell, as a prime contractor for the spacecraft, was assisted by an estimated 4,000 suppliers and subcontractors throughout the country.

  20. What Is the Planet Mercury? (Grades K-4) - NASA

    www.nasa.gov/.../for-kids-and-students/what-is-the-planet-mercury-grades-k-4

    Where Is Mercury? Mercury is the closest planet to the sun. Mercury goes around the sun once every 88 Earth days. A day on Mercury lasts a lot longer than a day on Earth. One day on Mercury lasts 59 Earth days. What Is Mercury Like? The surface of Mercury looks like Earth’s moon. It is covered with holes. The holes are called impact craters.

  21. Liftoff: Space - Saint Louis Science Center

    www.slsc.org/exhibits-attractions/liftoff-space

    St. Louis played a central role in Project Mercury, America’s first human spaceflight program, manufacturing 20 spacecraft to send the first Americans into space. St. Louis also made 10 manned Gemini spacecraft for the second human spaceflight program and helped rapidly advance the American space program.

  22. A Teachable Moment in the Sky: The Transit of Mercury | NASA Jet...

    www.jpl.nasa.gov/.../a-teachable-moment-in-the-sky-the-transit-of-mercury

    Mercury’s trek across the Sun begins at 4:35 a.m. PST (7:35 a.m. EST), meaning viewers on the East Coast of the U.S. can experience the entire event, as the Sun will have already risen before the transit begins. By the time the Sun rises on the West Coast, Mercury will have been transiting the Sun for nearly two hours.

  23. The Next Full Moon Will Be the Last of Four Consecutive ... -...

    science.nasa.gov/solar-system/skywatching/the-next-full-moon-will-be-the-last...

    Mercury will be shifting from the evening sky to the morning sky and will begin emerging from the glow of dawn on the eastern horizon in less than a week. Saturday afternoon, December 7, the planet Jupiter will be at its closest and brightest for the year, called “opposition” because it will be opposite the Earth from the Sun, effectively a ...

  24. NASA’s JPL to cut 325 positions amid budget tightening

    www.mercurynews.com/2024/11/13/nasas-jpl-to-cut-325-positions-amid-budget...

    NASA’s Jet Propulsion Laboratory announced Tuesday, Nov. 12, its second major round of layoff in nine months, cutting more than 300 jobs—approximately 5% of its workforce—to address ...

  25. Liftoff! NASA’s Europa Clipper Sails Toward Ocean Moon of Jupiter

    www.nasa.gov/news-release/liftoff-nasas-europa-clipper-sails-toward-ocean-moon...

    A SpaceX Falcon Heavy rocket carrying NASA’s Europa Clipper spacecraft lifts off from Launch Complex 39A at NASA’s Kennedy Space Center in Florida at 12:06 p.m. EDT on Monday, Oct. 14, 2024. After launch, the spacecraft plans to fly by Mars in February 2025, then back by Earth in December 2026, using the gravity of each planet to increase ...