Space debris is a growing threat to satellites and missions, with over 14,000 pieces already cluttering low-Earth orbit. To address this, Kazunori Takahashi, a researcher at Tohoku University in Japan ...

Since then all the advances have been in making rockets larger and more efficient through innovations peripheral to the rocket engine itself. There are alternatives to chemical rockets, such as ion ...

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The Earth is much larger than most people realize. You need to use engines if you want to efficiently navigate large sections of the planet. Everything from cars to planes relies on engines, but they ...