{
  "id": 9785150,
  "title": "'Everything we know about space travel is going to change within a decade': The fusion breakthrough that could unlock a path to the stars",
  "url": "https://urgent.news/2026/09/25/everything-we-know-about-space-travel-is-going-to-change-within-a",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-25T15:00:00.000Z",
  "source": {
    "name": "Live Science",
    "slug": "live-science",
    "url": "https://www.livescience.com/space/space-exploration/everything-we-know-about-space-travel-is-going-to-change-within-a-decade-the-fusion-breakthrough-that-could-unlock-a-path-to-the-stars"
  },
  "original_language": "en",
  "account": "Fusion-powered space travel has the potential to drastically transform our ability to explore the solar system. Companies such as Pulsar Fusion and Princeton University are working on practical fusion propulsion engines, with Pulsar aiming to launch a demonstration mission in 2027. If successful, missions across the solar system for both robots and humans could become a reality.\n\nNuclear fusion is the process of two atoms combining to form a heavier one, releasing excess energy in the form of light and heat. This same process occurs inside the sun, where hydrogen atoms fuse to form helium at temperatures of up to 27 million degrees Fahrenheit (15 million degrees Celsius). Replicating this process on Earth has been the goal of many experiments and tests, with large fusion reactors like the International Thermonuclear Experimental Reactor (ITER) under construction. However, commercially viable fusion reactors have yet to be built, mainly due to the challenges of confining and heating turbulent, superhot plasma.\n\nIf fusion propulsion were to succeed, spacecraft could be accelerated to extraordinary speeds, potentially even a fraction of the speed of light. This would make interstellar travel a possibility, drastically changing our understanding of space travel. However, there are significant challenges, including the need for a compact fusion reactor, a source of fuel and propellant, and powerful magnets to contain the plasma. Despite these hurdles, recent tests have brought the dream of nuclear fusion propulsion one step closer to reality.",
  "summary": "Several companies have made significant headway toward nuclear fusion propulsion drives. Is humanity on the brink of a revolution in spaceflight?",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}