cosmos

Gamma bursts: understanding the most energetic explosions

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Gamma-ray bursts represent the most violent and energetic phenomena observed so far in the Universe. These energy explosions, intermittently appearing in the cosmic night for billions of years, release a colossal amount of energy in just a few seconds, often greater than that emitted by the Sun over its entire lifetime. Lasting from a few … Read more

Understanding star formation

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Comprendre la formation des étoiles

IN BRIEF Star formation: Formation from the gravitational contraction of a nebula. Protostars: Clouds of gas that continue to contract to develop a star. Composition: Balls of gas mainly composed of hydrogen and helium. Process: Gravitational collapse of interstellar clouds. Stellar evolution: Life cycle encompassing the birth, evolution, and death of stars. Ongoing formation: About … Read more