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New images reveal complex nova eruptions — Level A1 — a bright blue and red star surrounded by stars

New images reveal complex nova eruptionsCEFR A1

6 Dec 2025

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Adapted from Noelle Toumey Reetz-Georgia State, Futurity • CC BY 4.0

Photo by NASA Hubble Space Telescope, Unsplash

Level A1 – Beginner
2 min
79 words
  • Astronomers took direct pictures of novae after eruption.
  • Novae are stars that explode and throw out material.
  • Scientists used several telescopes together for sharp images.
  • The pictures show different streams of gas and material.
  • Some explosions send several flows that collide and shock.
  • In other novae the system keeps its outer layers many days.
  • Later the system releases material and makes new shocks.
  • Gamma rays came from shocks during the outflows.
  • These images help scientists learn how stars explode.

Difficult words

  • astronomer — A person who studies stars and space
    Astronomers
  • nova — A star that suddenly becomes much brighter
    novae
  • telescope — A tool to see distant objects in space
    telescopes
  • material — Substance or matter that comes from something
  • stream — A flow of gas or liquid
    streams
  • collide — To hit something with strong force
  • gamma ray — A very strong type of light from space
    Gamma rays

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • Have you seen pictures of space?
  • Would you like to look at stars with a telescope?

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