NASA and Defense Department partner to launch first nuclear-powered rocket
The United States Aims to Launch First Nuclear-Powered Rocket Engine into Space
The United States is on the verge of making history by launching the first-ever nuclear-powered rocket engine into space within the next four years. NASA, in collaboration with the Department of Defense, has unveiled the ambitious $499 million project called the Demonstration Rocket for Agile Cislunar Operations (DRACO). The primary objective of this initiative is to develop and deploy a nuclear-powered rocket engine as early as 2027.
Revolutionizing Space Travel
“NASA is looking to go to Mars with this system,” revealed Anthony Calomino, the lead engineer of NASA’s space nuclear propulsion technology program, in an interview with ARS Technica. “And this test is really going to give us that foundation.”
Traditionally, chemical propulsion has been the go-to method for rockets to reach space. However, these rockets are not efficient for interplanetary travel due to the substantial amount of fuel they require. For instance, a journey to Mars using chemical propulsion would take a minimum of seven to nine months.
Enter nuclear propulsion. By utilizing nuclear power, the travel time to Mars could be halved, allowing astronauts to reach the red planet in just three to four months. This significant reduction in travel time would also minimize the duration astronauts spend exposed to the hazards of deep space.
Partnerships and Innovations
NASA has entrusted Lockheed Martin with the responsibility of designing, building, and testing the nuclear propulsion system for the DRACO project. The heart of the rocket engine will feature a nuclear fission reactor constructed by BWX Technologies, a Virginia-based company. This reactor will heat hydrogen from -420 degrees Fahrenheit to a scorching 4,000 degrees, generating thrust through the expulsion of hot gas from a nozzle. Additionally, this groundbreaking reactor technology could potentially power military satellites, enabling them to maneuver swiftly in Earth’s orbit.
A Historical Context
While the DRACO project is a new endeavor, the concept of nuclear propulsion is not. As far back as the 1950s and 60s, NASA, the Air Force, and the Advanced Research Projects Agency explored the idea of using atomic bomb explosions to accelerate spacecraft through Project Orion. Projects Rover and NERVA also aimed to develop nuclear-thermal engines similar to those being designed for DRACO. Although 23 reactors were constructed for these projects, none were ever launched into space. Notably, DRACO distinguishes itself from NERVA by employing a less-enriched form of uranium, as opposed to weapons-grade uranium.
Future Possibilities
NASA has contemplated the use of nuclear reactors for missions to Jupiter, Saturn, and other planets in our solar system, as well as for powering a lunar base. “The technical capabilities, including early safety protocols, remain viable today,” stated Tabitha Dodson, the project manager for DRACO, during a news briefing.
Flight Test and Safety Measures
The DRACO project will culminate in a flight test, currently scheduled for late 2025 or early 2026, according to Kirk Shireman, vice president of Lockheed Martin. The test is expected to reach an altitude between 435 miles and 1,240 miles, ensuring that it remains in orbit for over 300 years. This extended duration is necessary for the radioactive elements in the reactor fuel to decay to safe levels. To minimize the risk of a radioactive incident on Earth, the reactor will only be activated once it reaches space.
“DRACO has already conducted comprehensive preliminary analyses for all potential accidents, and we have found that the probability of any release is extremely low,” assured Dodson.
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