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30 groundbreaking NASA missions in photographs

  • 30 groundbreaking NASA missions in photographs
    1/ NASA // Flickr

    30 groundbreaking NASA missions in photographs

    The universe is nearly 14 billion years old. Human existence makes up a tiny fraction of that time—if the history of earth was 24 hours, humans came into the picture just before 11:59 p.m.— and yet much we've spent much of that time fascinated with space. For so long, we have posited theories and done our best to reach the most distant corners of the universe. 16th century Mesopotamians envisioned space as a cosmic ocean, while under the reign of the Roman Empire, Ptolemy theorized a geocentric universe. In 2015, new evidence emerged supporting the existence of water on Mars, and today, space tourism is a hot topic of conversation. People at all points in history have had ideas about what lies beyond the sky, and have wanted both to understand and see it for themselves.

    In the modern world, the National Aeronautics and Space Administration (NASA) is at the forefront of space exploration, making knowledge of the great unknown all the more possible. Founded in 1958 and headquartered in Washington D.C., NASA quickly changed the course of both robotic and human spaceflight. Since its creation, the agency has put people on the moon, created a new window into viewing the universe, and discovered extrasolar planets. And as it turns out, the people doing all this incredible work are actually a little more down to earth than the general public may believe. They might be geniuses, but they're also simply curious human beings.

    Stacker has done extensive independent research to develop this list of 30 groundbreaking NASA missions, as told in photographs. The images depict some of NASA's most profound achievements and capture these missions in a way that is at once visually profound and scientifically meaningful. Read on to learn about some of the most incredible moments and missions in NASA history.

     

    You might also like: 30 spectacular images of Earth from space

  • Explorer 1
    2/ NASA

    Explorer 1

    Way back in 1958, the launch of Explorer 1 marked a crucial turning point: this was the first time the United States succeeded in launching a satellite into space. The Soviet Union had launched Sputnik 1 in late 1957, and Explorer 1 showcased the fact that the United States was very much a contender in the space race. Explorer 1 transmitted signals to Earth for just under four months, and was finally destroyed years later, in 1970, when it reentered Earth's atmosphere.

  • Apollo-Saturn
    3/ NASA // Flickr

    Apollo-Saturn

    Before NASA put anyone on the moon, or even sent anyone into space, it needed to create and test a spacecraft that was up to the task. Thus, the Saturn V was born. This rocket, the kind that eventually would carry Neil Armstrong and Buzz Aldrin to the moon, was tested in stages throughout the 1960s and underwent its first full unmanned test flight in 1967, becoming the first-ever launch from the Kennedy Space Center in Florida. Testing an entire rocket at once via a launch—rather than testing various aspects incrementally—was a novel approach, and then-Space Center Director Dr. Kurt Debus commented afterward that it “went extremely well.

     

  • Apollo 7
    4/ NASA

    Apollo 7

    By Oct. 11, 1968—when the Apollo 7 launched from Cape Kennedy in Florida—humans had already spent some time in space, the first among them being Yuri Gagarin of the Soviet Union. However, Apollo 7 orbited earth 163 times over the course of nearly 11 days, making it the longest trip thus far, and breaking additional barriers by being the first manned spaceship to broadcast live on national TV. The successful goal of this mission was to both test the ship's equipment and to generally ensure that the three crew members, and therefore future astronauts, could survive a trip this long.

  • Apollo 8
    5/ NASA // Wikimedia Commons

    Apollo 8

    Some may think Christmas with the in-laws is tough, but the crew of Apollo 8, who spent their 1968 Christmas in space, would likely beg to differ. The Apollo 8 mission was intended to test both the spacecraft and the crew in an orbit between the Earth and the moon (referred to as cislunar), as well as an orbit around the moon, which had never before been done. The mission went well, proving the technology new to this spacecraft, such as a combined forward hatch, was in good shape and ready for further use and development.

  • Apollo 9
    6/ NASA // Wikimedia Commons

    Apollo 9

    While Apollo 8 successfully orbited the moon, it did not land, and additional testing was required to ensure that astronauts would be able to visit the moon and return home safely. Enter the 1969 Apollo 9 mission, in which a crew tried out a piece of technology crucial to this goal: the lunar landing module. The mission was a success and the crew was able to reattach the landing module in space, proving that a trip to the moon was not far off. As of March 20, 2019, all crew members of the Apollo 9 (James McDivitt, David Scott, and Rusty Schweickart) were still alive.

  • Apollo 10
    7/ NASA // Wikimedia Commons

    Apollo 10

    Often referred to as the “dress rehearsal” for the first lunar landing, the 1969 Apollo 10 mission essentially went through the motions of a moon landing, including detaching the lunar lander from the command module and putting it through the first portion of a descent, without actually touching down. The lunar lander and command module are respectively, and charmingly, referred to as Snoopy and Charlie Brown. Though everyone returned safely, the crew did experience a moment of panic when human error led the lunar module to spin wildly out of control (and the crew to shout a few choice expletives).

  • Apollo 11
    8/ NASA // Wikimedia Commons

    Apollo 11

    Ladies and gentlemen, the moment we've all been waiting for: on July 16, 1969, a Saturn V rocket carrying Neil Armstrong, Michael Collins, and Buzz Aldrin launched from the Kennedy Space Center. Four days later, Armstrong became the first human being to set foot on the moon. A new documentary about this event has shed light on some forgotten moments of the mission, such as Neil Armstrong taking the time, in a live TV broadcast during the crew's return to Earth, to pay homage to the technicians and engineers who built the 363-foot rocket that would make history. Eight years after President John F. Kennedy declared the lofty goal of putting a man on the moon, it was finally a reality.

  • Apollo 12
    9/ NASA // Flickr

    Apollo 12

    A few short months after the Apollo 11 mission put the first two men on the moon, the Apollo 12 mission followed suit. On Nov. 19, 1969, Charles Conrad Jr. and Alan L. Bean became the third and fourth souls to set foot on the lunar surface, spending a total of 32 hours there while third crew member Richard F. Gordon stayed on board the spacecraft. Mission goals included collecting data and samples from the lunar surface, setting up the Apollo Lunar Surface Experiments Package (which would be left there to gather additional information), and checking on Surveyor III, an unmanned spacecraft that had landed there two years earlier.

  • Apollo 13
    10/ NASA // Flickr

    Apollo 13

    Houston, we have a problem: while this widely known phrase is not entirely accurate (crew member John Swigert actually said “OK, Houston, we've had a problem here”), it still summarizes what happened during the Apollo 13 mission. This mission was intended to be the third moon landing, but that goal had to be aborted when an oxygen tank exploded 56 hours into the flight. The three men on board (Swigert, Fred Haise, and Jim Lovell) were then forced to take shelter in the lunar module and quickly assemble an adapter that would make the air breathable, thus proving the possibility of a safe return to Earth even in the face of harrowing danger.

  • Apollo 14
    11/ NASA // Flickr

    Apollo 14

    Part of the Apollo 13 objectives had been to land for the first time on a particular area of the moon known as Fra Mauro, a crater named for the 15th century Italian geographer. Since Apollo 13 never landed, Apollo 14—which launched in early 1971 and carried a three-person crew of Alan Shepard, Stuart Roosa, and Edgar Mitchell—took over the goal of the Fra Mauro landing. After takeoff, the spacecraft struggled and experienced five failed attempts at connecting the command ship with the docking ring of the landing craft, but ultimately succeeded and completed the mission.

  • Apollo 15
    12/ NASA // Flickr

    Apollo 15

    The July 1971 Apollo 15 mission was the fourth mission to put human beings on the moon. This mission marked the revolutionary debut of the lunar roving vehicle (also known as a “moon buggy”), a four-wheeled, open-air vehicle designed to function with the moon's gravitational pull, thus enabling astronauts to observe a wider range of the lunar surface in a single visit. One aim of the trip was to take more photographs than prior visits, so the crew of this mission traveled with a huge variety of cameras to capture scenes during every part of the journey.

  • Apollo 16
    13/ NASA // Flickr

    Apollo 16

    The Apollo 16 mission lasted just over 11 days, beginning on April 16, 1972, and carrying the three-person crew of John Young, Thomas “Ken” Mattingly, and Charles Duke. Young and Duke were the two who set foot on the moon's surface, and they spent more than 20 hours there collecting, in an amazing feat, over 200 pounds of lunar samples. Duke also made history by leaving something a behind: a family photo with the message, "This is the family of astronaut Charlie Duke from planet Earth who landed on the moon on April 20, 1972,” written on the back.

  • Apollo 17
    14/ NASA // Flickr

    Apollo 17

    Apollo 17—which launched on Dec. 7, 1972—marked the last time humans set foot on the moon. However, the legacy of this mission is still very much alive. NASA recently announced it would open a collection of lunar rocks, which have never been studied in full, from Apollo missions 15, 16, and 17. (The latter mission alone brought back 250 pounds of rocks). These samples were preserved for a time when more advanced technology could delve deeply into the clues they may hold, and it's finally time to dig in.

  • Pioneer 10
    15/ NASA // Flickr

    Pioneer 10

    The journey of Pioneer 10, a space probe that launched from Cape Canaveral on March 2, 1972, was filled with firsts. At the time, NASA was gearing up to take advantage of a rare alignment in the solar system that would allow for a “Planetary Grand Tour”—meaning a group of spacecrafts would be able to visit multiple planets in one trip. To prepare for this journey, Pioneer 10 was sent on a data-gathering mission, and became both the first spacecraft to reach Jupiter, and the first to leave the inner solar system.

  • Pioneer 11
    16/ NASA // Flickr

    Pioneer 11

    Pioneer 11 served as a companion probe to Pioneer 10, and was launched into space in 1973. Pioneer 11's journey marked another important first for NASA: this probe was the first to encounter Saturn, and it was also able to send back amazing images of Jupiter's polar regions. The spacecraft experienced a few technical setbacks and failures on its outbound journey, but overcame them and made such discoveries as an additional ring around Saturn. The last contact with this spacecraft occurred in late 1995.

  • Viking
    17/ NASA

    Viking

    The central goal of NASA's 1970s Viking missions was to gather images of, and data pertaining to, Mars, as knowledge of the planet at that time was slim. The Viking project proved a huge success, producing some 50,000 images of Mars and disproving the theory that the Martian sky was blue, similar to that of Earth. (In reality, it's pinkish during daytime.) Viking landers were also able to touch down and analyze Martian soil and atmosphere, a huge stepping stone in scientific understanding of this planet.

  • Voyager Interstellar
    18/ NASA // Flickr

    Voyager Interstellar

    The space probe Voyager 2 was sent into space in 1977, and in late 2018 it exited the heliosphere—the region of space that surrounds the sun and is impacted by its magnetic field—and officially went interstellar. In the decades preceding this monumental moment, Voyager 2 encountered and photographed Jupiter, Neptune, Uranus, and Saturn; it is the only probe to face the latter two planets. Voyager 1 went interstellar in 2012, and now both probes are on a mission to send back information about what lies beyond the solar system, though they are still many thousands of years from reaching the stars for which they have set course.

  • Skylab
    19/ NASA // Flickr

    Skylab

    Skylab, NASA's first space station, was made out of a component of a Saturn V rocket during a time of NASA budget constraints. It launched unmanned in May 1973. The goal was to test the viability, for the first time, of a space station that could be inhabited by a crew for extended periods to conduct scientific research; in fact, several crews (one of which included Charles Conrad, a member of Apollo 12) visited and occupied the station during its time in space. Skylab's return to Earth became an international media spectacle, as NASA could not pinpoint the exact moment when or location where the craft would crash back through the atmosphere.

  • Space Shuttle
    20/ NASA // Flickr

    Space Shuttle

    NASA's Space Shuttle Program—in effect from 1981 to 2011—marked a huge scientific stride in creating the first effectively reusable spacecraft. The program created a fleet of five spacecrafts during its three-decade run, and before Space Shuttle Challenger's tragic end, it carried Sally Ride, the first U.S. woman in space. Space Shuttle Discovery successfully shuttled 184 men and women to space and back, and spent a total of 365 days in space before it was retired in 2011.

  • Shuttle-Mir
    21/ NASA // Flickr

    Shuttle-Mir

    For much of the Cold War, the United States and the former Soviet Union used space to compete against one another, but the Shuttle-Mir program noted a great shift in this dynamic. The program was a U.S.-Russia collaboration, consisting of U.S. shuttles and astronauts visiting the Russian space station, Mir. When the U.S. space shuttle Atlantis docked at Mir in 1995, history was made in more ways than one: the U.S. and Russian spacecrafts together formed the biggest man-made satellite, and the trip itself constituted this country's 100th human space mission.

  • Landsat
    22/ NASA // Flickr

    Landsat

    On July 23, 1971, Landsat 1 (originally named the Earth Resources Technology Satellite) was launched into space. The goal of the Landsat program was to obtain extensive satellite imagery of Earth's terrain. Today, both Landsat 7, which was launched in 1999, and Landsat 8, which began operating in 2013, are active and functional. The program was heavily opposed at the start, due to budget restrictions and the U.S. Defense Department's fear that such photography would negatively affect the confidentiality of the missions. But it ultimately was funded and became a successful and valuable new program.

  • Hubble Space Telescope
    23/ NASA

    Hubble Space Telescope

    The Hubble Space Telescope is named for Edwin Powell Hubble, a hugely important 20th century American astronomer who discovered and proved the existence of galaxies beyond the Milky Way. The telescope was launched into orbit in 1990, and since then has broken barriers through its unique ability to capture and transmit images of space. The telescope is used for extensive scientific research projects, such as the Frontier Fields program, but members of the public can also apply for observation time.

  • Chandra
    24/ NASA // Flickr

    Chandra

    Chandra X-ray Observatory, launched by NASA in 1999, is a telescope designed for the sole purpose of detecting X-ray emissions in space. These emissions occur in the universe's hottest regions, such as where stars explode, and Chandra has been groundbreaking in its ability to capture images of such phenomena. As of March 14, 2019, Chandra was capturing images of a galactic storm in a distant galaxy in a cosmic structure known as the “Teacup.” It is located over one billion light years from Earth.

  • Spitzer Space Telescope
    25/ NASA

    Spitzer Space Telescope

    The Spitzer Space Telescope, which was launched in August 2003 and still functions in 2019, is an infrared telescope that has allowed scientists visual access to previously unseen regions of the universe. The telescope is made up of two main components: the spacecraft itself and the cryogenic telescope assembly. It has produced striking images of brown dwarfs, molecular clouds, and more. Spitzer is notable for its role in scientists' ability to identify exoplanets, and has given insight into galaxies more than 13 billion light years from Earth.

  • International Space Station
    26/ NASA // Flickr

    International Space Station

    If you don't like spending extended periods of time with your coworkers, then a job on the International Space Station may not be for you. The Space Station, which launched into orbit in 1998, has now been continuously inhabited for close to 20 years, with crews generally staying on board for six months at a time. Many nations contribute crew members and scientific knowledge to the project, and the three members of the current Expedition 58 (Oleg Kononenko, Anne McClain, and David Saint-Jacques) have been aboard since December 2018. This consistent presence of humans in space is groundbreaking in its own right, and has allowed the scientific community to perform extensive experiments and gain knowledge about how humans can live in space.

  • Mars Science Laboratory
    27/ NASA

    Mars Science Laboratory

    Since 2012, the Curiosity rover for the Mars Science Laboratory has been stationed on the red planet, trying to provide an answer to one specific question: was Mars ever able to support life, specifically microscopic organisms known as microbes? Mars Science Laboratory's mission is a subset of NASA's Mars Exploration Program, designed to study the habitability of Mars and determine whether the planet could one day be a home for humans. Through its success in shedding light on Mars, Curiosity is living up to its name, which was bestowed by 12-year-old Clara Ma, winner of the Mars Science Laboratory essay contest.

  • Parker Solo Probe
    28/ NASA

    Parker Solo Probe

    Many spacecrafts and brave astronauts have traveled the galaxy, but the Parker Solo Probe has embarked on a mission unlike anything that has come before. Launched in 2018, this spacecraft is en route to enter territory four million miles from the Sun. Though that may sound like huge distance, this probe will encounter unimaginably intense heat and radiation, and is doing so to learn more about the sun's outer corona (the aura of plasma surrounding the sun). Another detail that sets the Parker Solo Probe apart from all other NASA missions is that it's the first to be named for a living individual: Eugene Parker, a professor at the University of Chicago who theorized revolutionary concepts about the ways in which the sun emits energy.

  • Juno
    29/ NASA

    Juno

    Because of the dense layer of clouds that surrounds it, Jupiter maintains an environment that could shed light on the conditions in play when the solar system was first formed. This is the primary reason Juno is so important: launched in 2011, it is the first probe to map Jupiter's structure so far below the clouds. It can sample the charged particles on the planet's poles, which have never before been analyzed in such a way. Juno is the name of the Roman goddess who was able to see through clouds to check on her husband, Jupiter, which is perfectly fitting.

  • OSIRIS-REx
    30/ NASA

    OSIRIS-REx

    OSIRIS-REx's mission is no small undertaking: this spacecraft, and those behind it at NASA, are seeking answers to such questions as where humans come from and why the universe exists as it does. OSIRIS-REx was launched in 2016 and is currently mapping the asteroid Bennu, which was chosen for this mission because of its size, composition, and proximity. (It's so close that it could potentially hit Earth in the 22nd century.) The great feat of OSIRIS-REx is that it's on track to be the first mission to return an asteroid sample to Earth, theoretically in 2023.

  • Cassini
    31/ NASA

    Cassini

    In addition to the great discoveries it provided, Cassini also marked an act of unity in the name of science. This spacecraft, which traveled to Saturn carrying a probe known as Huygens, was a joint effort among NASA, the European Space Agency, and the Italian Space Agency. Cassini's mission lasted 20 years, and in that time it made many critical discoveries, including revelations about the gravitational pull of Saturn's rings. Huygens also made the first landing on Titan, Saturn's moon. Perhaps most impressively, the Cassini mission ended with a grand finale: in its last months, Cassini dove through the gap between Saturn and its rings 22 times, creating a well of data about this previously unexplored region.

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