Buzz
Late in the night on November 23, 2021, at precisely 10:20 pm, you glanced up at the sky to witness a groundbreaking moment. NASA's Double Asteroid Redirection Test (DART) mission was launched from California's Vandenberg Space Force Base atop a Falcon 9 rocket. The spacecraft embarked on a journey spanning millions of miles to conduct a planetary defense experiment – deliberately colliding with an asteroid. The total cost? A staggering $308 million! The mission's sole objective was to determine whether it could alter the asteroid’s course. (Couldn’t Bruce Willis and his team do this for a smaller budget?)
NASA (National Aeronautics and Space Administration) began its operations on October 1, 1958. From the outset, the agency had ambitious goals: to push the boundaries of human knowledge in space, pioneer innovations in space technology, create vehicles capable of transporting both cargo and humans into space, and collaborate with global space agencies to drive revolutionary scientific discoveries.
Over the past 60 years, NASA has successfully achieved all of these objectives while continuing to seek answers to some of the most challenging scientific questions, all while evolving to meet the needs of an ever-changing world. But what has been the price of this journey?
In this article, we’ll explore some of NASA’s priciest programs to date. Although it’s easy to admire NASA’s many groundbreaking accomplishments, the hefty price tags may have you questioning whether the investment was truly worth it.
10. Galileo, Estimated Cost: $1.6 Billion
Launched in 1989, the Galileo spacecraft, named after the renowned Italian scientist, set out to explore the largest planet in our Solar System. By December 1995, it became the first spacecraft to orbit Jupiter. While the planet itself was a point of interest, the most valuable discoveries came from its moons. Among them, Europa, with its hidden ocean beneath a thick icy crust, has emerged as one of the leading candidates for potential life in our solar system.
Unfortunately, like all great adventures, Galileo’s mission could not last indefinitely. After almost eight years in orbit, the spacecraft's journey ended with a dramatic conclusion. To prevent any microbial contamination of Jupiter’s moons, Galileo was deliberately directed into Jupiter’s atmosphere, where it was destroyed.
9. Alpha Magnetic Spectrometer, Estimated Cost: $2 Billion
The AMS-02, or Alpha Magnetic Spectrometer, is a state-of-the-art scientific instrument currently residing aboard the International Space Station. Delivered by the Space Shuttle Endeavor in 2011, this device, designed by Nobel Prize-winning physicist Samuel Ting, rivals the most advanced particle accelerators found on Earth. Its mission? To detect antimatter and gather crucial data that might unlock the mysteries of dark matter.
AMS-02 has gathered data from over 175 billion cosmic ray events throughout its operational life and continues to function—far beyond its original three-year mission lifespan. In our ongoing search for answers about the universe, this groundbreaking experiment has detected antimatter, including both antiprotons (the antimatter counterparts of protons) and positrons (the antimatter counterparts of electrons). It was revealed that high-energy positrons originate from various astronomical phenomena, such as cosmic ray interactions and dark matter, which contrasts with the origins of high-energy electrons, offering vital insights into the sources of these particles.
8. Hubble Space Telescope, Estimated Cost: $2.5 Billion
The Hubble Space Telescope, named after the renowned 20th-century astronomer Edwin Hubble, faced a rocky start. After being launched into orbit, a minor error in its design resulted in a flaw that affected the quality of its images. The miscalculation was incredibly small (on the order of microns—roughly one-fiftieth of the width of a human hair), but it had a significant impact on the delicate equipment. To fix the issue, NASA sent astronauts to repair the telescope, installing tiny mirrors into its optical system. After that, Hubble functioned flawlessly, providing humanity with the most extraordinary images of the universe over the following two decades.
The Hubble Space Telescope observes the cosmos around the clock, 24 hours a day, seven days a week. As a result, it has captured awe-inspiring cosmic events daily for the past 31 years—including on your birthday. If you haven’t yet checked out your birthday image on NASA’s website, we highly recommend doing so—it’s truly captivating to see.
7. Curiosity, Estimated Cost: $2.5 Billion
Curiosity is undoubtedly the most advanced rover to ever explore our neighboring planet, Mars, although it’s not the first to do so. At any given moment, you can view the terrain Curiosity is currently examining and the weather conditions it’s experiencing—and it’s truly amazing. The mission’s goal was to deepen our understanding of Mars' geology and climate to answer one of the most critical questions in astronomy: is Mars capable of supporting human life? And if it isn't, did it ever support life in the past?
As of now, the answer to whether Mars is suitable for human life is a clear no, while the possibility of it being habitable in the past remains uncertain. However, the idea that a sophisticated robotic explorer is currently scouring the Martian surface and collecting data from another world is, in our view, more than enough to justify the $2.5 billion investment.
6. Cassini-Huygens, Estimated Cost: $3.26 Billion
In 1997, NASA launched the Cassini-Huygens mission to study Saturn, the most awe-inspiring of the gas giants in our solar system. The spacecraft was named after Italian astronomer Giovanni Cassini and Dutch scientist Christian Huygens. After a seven-year journey, Cassini entered orbit around Saturn and gathered crucial data about the planet’s rings, moons, and atmosphere.
The European Space Agency’s Huygens probe, carried by Cassini, separated from the main craft on Christmas Day 2004 and successfully landed on Titan, one of Saturn’s moons. This was the first successful landing in the outer Solar System and the first on any moon besides Earth’s. After 20 years in space, Cassini ran out of fuel. NASA executed a daring final mission to plunge the spacecraft into Saturn’s atmosphere to protect moons that could potentially support life. On September 15, 2017, Cassini dove into Saturn’s atmosphere after performing numerous daring dives between the planet and its icy rings, delivering invaluable data until the very end.
5. Global Positioning System, Estimated Cost: $12 Billion
The U.S. Air Force oversees the Global Positioning System (GPS), a space-based radio navigation network managed by the U.S. government. GPS is capable of pinpointing any location in three-dimensional space with meter-level precision and time accuracy down to 10 nanoseconds, anywhere on Earth, at any time—24/7. The system consists of three parts: the control segment, space segment, and user segment. In its role to advance scientific discovery, space exploration, and aeronautical research, NASA continues to develop and deploy numerous GPS applications to support future endeavors in space.
The origins of GPS trace back to the Sputnik era when scientists first recognized how to track satellites through shifts in their radio signals, a phenomenon now known as the “Doppler Effect.” Today, the GPS space segment comprises over 30 fully operational satellites, each outfitted with redundant atomic clocks, and is supported by a global ground control network that ensures the system operates 24/7.
4. SLS and Orion, Estimated Cost: $23 Billion
NASA's Space Launch System (SLS) is a powerful heavy-lift rocket system designed to lay the foundation for human exploration beyond our solar system. The SLS is the only rocket capable of sending the Orion spacecraft—along with cargo and astronauts—on a single mission to the Moon. This highly anticipated mission is expected to launch in early 2022, though the timeline remains subject to adjustments.
NASA will use a configuration called Block 1 for the Artemis I mission, marking the first-ever combined flight of the SLS and Orion spacecraft. With a maximum thrust of 8.8 million pounds, the SLS will generate 15% more power than the iconic Saturn V rocket. For Artemis I, the Block 1 setup will propel an uncrewed Orion spacecraft 40,000 miles past the Moon, reaching a distance of 280,000 miles from Earth. Prior to sending astronauts on a crewed mission, NASA engineers will closely monitor and fine-tune the performance of the SLS, Orion, and their Exploration Ground Systems. If all goes as planned, Artemis II will send astronauts on a mission to orbit the Moon, eventually leading to Artemis III, which aims to land astronauts on the lunar surface in 2024.
3. Space Shuttle Program: $209 Billion
The Space Shuttle Program, launched in the 1970s, introduced the world’s first reusable orbital space shuttle, marking a major shift from one-time-use rockets. This groundbreaking program included an external tank, two external boosters, and the now-famous orbiter vehicle—one of the most remarkable engineering achievements ever made.
Over the course of its three decades, five orbiters were constructed: Atlantis, Endeavour, Discovery, Challenger, and Columbia. Tragically, the latter two were destroyed during missions—these incidents being the only major failures in an otherwise highly successful program.
The Space Shuttle Program cost between $196 and $209 billion, according to NASA's official estimate, and completed 135 launches at a price of more than $1.5 billion per launch. The program was succeeded by the Space Launch System (SLS) just two months after the final mission, which occurred in July 2011.
2. International Space Station, Estimated Cost: $150 Billion
The International Space Station stands as a testament to human achievement, showcasing what can be accomplished when nations collaborate. As the largest human-made structure in space, the ISS is visible to the naked eye under optimal conditions. It serves as a unique platform for scientific research and offers valuable insights into how prolonged space exposure affects human health.
The journey of the International Space Station began in November 1998 when Russia launched the Zarya control module into orbit aboard a Russian rocket. Just two weeks later, the U.S. Space Shuttle Endeavour arrived, bringing the Unity node. The crew successfully docked the Zarya module with Unity. Over the following years, additional modules were added, transforming the ISS into a habitable environment. The first crew to live aboard the ISS arrived on November 2, 2000, and astronauts from various nations have been living and working there ever since.
1. Apollo Space Program, Estimated Cost: $110 Billion
The Apollo Program, which began in the 1960s, marked a pivotal chapter in human space exploration, occurring within the same era as the first-ever human flight. NASA designed the Apollo Command Module to carry up to three astronauts on their lunar missions. Unlike the Mercury and Gemini spacecraft, this module offered much more space—though still limited, with the crew compartment about the size of a car, allowing astronauts a bit more room to maneuver during their trips to and from the Moon.
The Lunar Module, a distinct spacecraft, was designed for landing on the Moon. It carried astronauts from lunar orbit to the Moon’s surface and then back to orbit. The Lunar Module had the capacity to transport just two astronauts. This limitation meant that Buzz Aldrin and Neil Armstrong became the first humans to set foot on the Moon in July 1969 during the Apollo 11 mission, fulfilling President John F. Kennedy’s ambitious goal of landing a crew on the Moon and returning them safely before the decade’s end. A monumental feat, the Apollo missions saw 24 astronauts travel to the Moon, with 12 walking on its surface, marking the most ambitious space exploration efforts ever undertaken.
