Grana
Grana is a type of rocket engine that uses solid propellant. It is a high-thrust engine that provides a short burst of power, making it ideal for use in the first stage of a rocket launch. Grana engines are known for their simplicity and reliability, as they have fewer moving parts than liquid-fueled engines. They are also less expensive to manufacture and easier to transport and store. However, they cannot be throttled or shut down once ignited, and their performance is less efficient than liquid-fueled engines. Grana engines have been used in a variety of space missions, including the launch of the Hubble Space Telescope and the Mars Pathfinder mission.
Your Previous Searches
Random Picks
- Chemical Kinetics: Chemical kinetics is the study of the rates and mechanisms of chemical reactions. It involves the investigation of how different experimental conditions affect the speed and extent of a chemical reaction, as well as the factors that control ... Read More >>
- Radiation: Radiation refers to the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization. In the context of space and astronautical engineering, radiation is a major concer ... Read More >>
- Ground Support Infrastructure: Ground Support Infrastructure (GSI) refers to the physical and organizational structures and systems necessary to support space missions on the ground. This includes facilities for spacecraft assembly, integration and testing, launch vehicl ... Read More >>
Top News
Check out this interactive map of the early universe, considered largest ever cr...
A team of astronomers have put together the largest, most detailed map of the universe ever created – and you can explore it now....
News Source: USA Today on 2025-06-12
The Vera C. Rubin Observatory is about to totally transform astronomy...
With the ability to scan the entire southern night sky every three days, the huge Vera C. Rubin Observatory could be about to start solving the mysteries of the universe, from dark matter to Planet Ni...
News Source: New Scientist on 2025-06-12
Trump's proposed science cuts will have huge consequences...
The universe will still be there to marvel at, despite brutal cuts set to hit NASA and the National Science Foundation's budgets. But the damage to future research will be long-lasting, says Chanda Pr...
News Source: New Scientist on 2025-06-11
Starlink satellites are leaking radio signals that may ruin astronomy...
Our ability to study faint radio signals from when the first stars began to form is being threatened by SpaceX's Starlink satellites, which seem to be unintentionally leaking radio signals that overpo...
News Source: New Scientist on 2025-06-09
Asteroids around Venus pose possible 'invisible threat' to Earth: Should you be ...
A swarm of large asteroids likely lurking around Venus could one day pose an "invisible threat" to Earth if left unchecked, astronomers have warned....
News Source: USA Today on 2025-06-06