{
  "id": 9195075,
  "title": "Light beam 'swims' upstream through a quantum fluid by violating Newton's third law",
  "url": "https://urgent.news/2026/09/22/light-beam-swims-upstream-through-a-quantum-fluid-by-violating",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-22T20:10:02.000Z",
  "source": {
    "name": "Phys.org",
    "slug": "phys-org",
    "url": "https://phys.org/news/2026-09-upstream-quantum-fluid-violating-newton.html"
  },
  "original_language": "en",
  "account": null,
  "summary": "Just as a leaf drifts along with a stream, objects in other moving fluids normally drift along with the flow. That is, unless they exert energy to move against it. Although it may be less intuitive, light waves or photons work similarly. To move against a stream of light, an object or particle, like a photon, must either have an external force acting on it or actively use energy to move upstream.",
  "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."
}