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NASA’s Most Expensive Programs

On October 1, 1958, NASA (National Aeronautics and Space Administration) became operational. The administration’s goals were grandiose right from the start: expand human knowledge of space; lead the world in space-related technological innovation; develop vehicles that can carry both equipment and living organisms into space, and collaborate with international space agencies to achieve the most incredible scientific advancements possible. 

NASA has accomplished each of these objectives during the last 60 years, and it continues to seek solutions to some of science’s most vexing questions as it adapts to a changing world.

In this list, we’ll take a look at some of NASA‘s most expensive programs to date. While it may be easy to pick a favorite among NASA’s many accomplishments, the price tag might leave you wondering if the expense was really worth it.

10. Galileo, Estimated Cost: $1.6 Billion


Galileo, named after the great Italian scientist Galileo, began its journey towards the Solar System’s largest planet in 1989. In December 1995, it became the first-ever spacecraft to orbit the planet Jupiter. While the planetary gas giant itself is fascinating (Galileo even witnessed the massive impact of comet Shoemaker-Levy 9), crucial information was gathered about its moons, one of which, Europa, with its seas of water behind an icy crust, is one of the contenders to house life when looking at our solar system.

Regrettably, Galileo’s fascinating journey couldn’t continue forever and, like most extraordinary things, unfortunately, had to come to its end. Galileo was terminated after nearly eight years in orbit by launching it into Jupiter’s atmosphere in order to avoid contaminating any of Jupiter’s moons with microbes that may have caught a ride from our world.

9. Alpha Magnetic Spectrometer, Estimated Cost: $2 Billion


The (AMS-02) or Alpha Magnetic Spectrometer is an actual, extremely complex piece of equipment flown into space on the International Space Station (despite its name sounding like something a Hollywood screenwriter might have dreamed up). The AMS-02, created by Nobel Laureate and particle physicist Samuel Ting, is as advanced as anything you’ll find in a particle accelerator on earth and was designed to detect antimatter and find data that could help solve the puzzle of dark matter.

AMS-02 has collected data from over 175 billion cosmic ray occurrences during its lifetime and is still operational despite its initial planned lifecycle of 3-years. In our quest to better understand our world, the considerable experiment has revealed antimatter in the form of both antiprotons and positrons. Antiprotons are protons’ antimatter complements, whereas positrons are electrons’ antimatter counterparts. Researchers discovered that high energy positrons are produced by various astronomical sources, such as cosmic ray collisions and dark matter, as opposed to high energy electrons, providing insight into the origins of these particles.

8. Hubble Space Telescope, Estimated Cost: $2.5 Billion


The Hubble Space Telescope, named after Edwin Hubble, one of the best astronomers of the twentieth century, had a rocky start after being sent into orbit due to an error that reduced the quality of photos obtained. The miscalculation was on the range of microns, or approximately one-fiftieth the width of a human hair, which was plenty for such a delicate piece of technology. As such, NASA had to send in astronauts to remedy the mistake; by giving it “spectacles.” Hubble started working without a hiccup after that, and over the next two decades, the telescope has provided us with the most incredible photographs ever taken of our universe.

Hubble examines the cosmos 24 hours a day, seven days a week. That means it has witnessed some fantastic cosmic phenomenon every day of the year – for the past 31 years – including your birthday. If you haven’t looked at your birthday image on NASA’s website yet, we strongly advise you to do so because it makes for fascinating viewing.

7. Curiosity, Estimated Cost: $2.5 Billion


Curiosity is beyond a doubt the most advanced probe to ever visit our planetary neighbor, although it is by no means the first. At any moment of the day, you have the opportunity to look at the current terrain Curiosity is investigating or the weather it might be experiencing, and it makes for fascinating viewing. Curiosity’s objective was to learn more about the planet’s geology and climate in order to address one of astronomy’s most pressing questions: is Mars suited for human life? And if it isn’t, was it suitable at some point in our past?

Up to this point, the answer to the first question is a definite no, while the answer to the second looks to be inconclusive, however, the notion that a high-tech robot is currently scouring the terrain and gathering data on another world is good enough to justify the $2.5 billion price tag.

6. Cassini-Huygens, Estimated Cost: $3.26 Billion

1920px Cassini Saturn Orbit Insertion

NASA launched the Cassini-Huygens mission in 1997 to explore Saturn, the most magnificent of the gas giants in our planetary system. It was named after Italian and Dutch astronomers Giovanni Cassini and Christian Huygens. After a seven-year trip, Cassini was launched into orbit above Saturn and gathered vital information about the planet’s rings, satellites, and atmosphere.

Cassini’s passenger, the European Space Agency’s Huygens probe, detached from the primary craft on Christmas Day 2004 and successfully landed on Titan, one of Saturn’s moons – the very first landing on an object other than Mars. Cassini ran out of fuel after 20 years in space, 13 of which were spent investigating Saturn. NASA sent the spacecraft on a bold final mission to Saturn’s atmosphere to protect moons that might have circumstances favorable for life. On September 15, 2017, Cassini plummeted into Saturn’s atmosphere after nearly two dozen nail-biting dives between the planet and its icy rings, delivering research data to the very end.

5. Global Positioning System, Estimated Cost: $12 Billion


The US Air Force operates the Global Positioning System (GPS), a space-based radio navigation system controlled by the US government (USAF). It can identify a three-dimensional location to meter-level exactness and time to 10-nanosecond reliability anywhere in the world – 24 hours a day, 7 days a week. GPS is made up of three segments, the control segment, space segment, and user segment. To facilitate higher spacecraft autonomy and more sophisticated space science and Earth tracking applications, NASA’s commitment to spearhead the future in scientific discovery, aeronautics research, and space exploration necessitates the proactive development and implementation of several GPS applications. NASA collaborates with the US Air Force to accomplish this feat to improve GPS capabilities to assist space operations and research applications.

GPS’s origins can be traced back to the Sputnik era, when researchers discovered how to track satellites using shifts in its radio signal, referred to as the “Doppler Effect.”  Presently, the Global Positioning System’s space segment consists of more than 30 fully functional satellites, each equipped with redundant atomic clocks and monitored by a ground control network.

4. SLS and Orion, Estimated Cost: $23 Billion

nasa flatearth

The SLS, NASA’s Space Launch System, is a mega heavy-lift propulsion system developed by NASA that lays the groundwork for human space exploration beyond our solar system. The SLS is the only rocket with the power and capabilities to send the Orion spacecraft, including cargo and astronauts, to the Moon in one single mission. And it’s set to launch at the end of this year or early in 2022.

NASA will use a configuration known as Block 1 for the launch of Artemis I, the first combined flight of SLS and Orion. The SLS will have a maximum thrust of 8.8 million pounds, 15% more than the Saturn V rocket. For Artemis I, the Block 1 configuration will send a crewless Orion spacecraft 40,000 miles farther than the Moon (280,000 miles from Earth). Before NASA moves on to a crewed flight, engineers will monitor and modulate the integrated system performance of SLS, Orion, and its Exploration Ground Systems. If everything goes smoothly, the Artemis II mission will send astronauts on a flight to orbit the Moon, paving the way for the Artemis III mission to land astronauts on the Moon in 2024.

3. Apollo Space Program, Estimated Cost: $110 Billion


The Apollo Program began in the 1960s, within the same lifetime as humankind’s first-ever flight. NASA created the Apollo Command Module specifically for this program. It was a capsule that could accommodate up to three astronauts. The astronauts traveled to and from the Moon in the Command Module. It was far more extensive than the Mercury and Gemini spacecraft, and the astronauts inside had plenty of room to move about – depending on the notion of “plenty” as the crew space was about the size of a car.

The Lunar Module, a separate spacecraft, was utilized to land on the Moon. This craft transported astronauts from lunar orbit to the surface of the Moon and back to orbit. The Lunar Module itself only could transport two astronauts. Buzz Aldrin and Neil Armstrong famously became the first humans to walk on the Moon in July 1969 during the Apollo 11 mission, just in time to keep President John F. Kennedy’s goal of placing a crew on the Earth’s natural satellite and safely returning them by the end of the decade. Perhaps the most outstanding achievement in history, the Apollo missions transported 24 people to the Moon (12 on its surface! ) and remains the most ambitious expeditions ever attempted.

2. International Space Station, Estimated Cost: $150 Billion

space station

The International Space Station is a technical marvel and a symbol of what people from many different countries can do when they work together. The International Orbit Station (ISS) is the largest artificial object in space (it can even be seen with the naked eye if the conditions are correct! ). It provides unique conditions for performing scientific experiments and examining the impact of lengthy periods in space on humans.

Russia launched the International Space Station’s first component into orbit in November 1998. The Russian Zarya control module was launched by a Russian rocket. In orbit, the space shuttle Endeavour met with Zarya carrying the US Unity node two weeks later.  The crew then proceeded to join the Zarya module to the Unity node. Over the next two years, more pieces were added to the station before it was suitable for astronauts to live there. The first live-aboard crew made their way to the International Space Station on November 2, 2000, and astronauts from nations all over the world have called it home for limited periods of time ever since. 

1. Space Shuttle Program: $209 Billion


The Space Shuttle Program gave birth to the world’s first orbital space shuttle to be developed for reuse in the 1970s (instead of rockets, which could only be used once and were disposed of after each launch). It consisted of an external tank, two external rockets or boosters, and the famous orbiter vehicle, which is one of the most well-known machines ever constructed.

Five orbiters were built throughout the project’s three decades of activity: Atlantis, Endeavor, Discovery, Challenger, and Columbia. Unfortunately, the last two were destroyed during operations, the only significant mishaps in an otherwise successful sequence of missions.

The Space Shuttle Program cost between $196 and $209 billion (NASA’s official estimate) and flew 135 times in its career, at the cost of more than $1.5 billion per launch. The Shuttle program was succeeded by the SLS (Space Launch System) just two months after the program’s last mission, which took place in July 2011.

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