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  1. Comet Browser: a Personal AI Assistant

    Comet browser by Perplexity is the AI browser that acts as a personal assistant. Automate tasks, research the web, organize your email, and more with Comet.

  2. Comet - Wikipedia

    These phenomena are due to the effects of solar radiation and the outstreaming solar wind plasma acting upon the nucleus of the comet. Comet nuclei range from a few hundred meters to tens of …

  3. Latest Comet 3I/ATLAS news: Comet close approach today

    5 days ago · Comet 3I/ATLAS will approach within 168 million miles (270 million kilometers) of Earth when it makes its close flyby on Dec. 19. You can watch comet 3I/ATLAS's flyby live online in a free …

  4. Interstellar comet glows in new X-ray images ahead of Earth flyby | CNN

    4 days ago · Interstellar comet 3I/ATLAS will make its closest approach to Earth on Friday. New X-ray images could shed light on its composition.

  5. Comet 3I/ATLAS reaches closest point to Earth: How to see it on Friday ...

    4 days ago · Comet 3I/ATLAS, the third interstellar object ever detected, reached its closest point to Earth overnight from Thursday to Friday (Dec. 18 to 19), and it remains in a good viewing position …

  6. Comet | Definition, Composition, & Facts | Britannica

    Nov 29, 2025 · Comet, a small body orbiting the Sun with a substantial fraction of its composition made up of volatile ices. Comets are among the most-spectacular objects in the sky, with their bright …

  7. Comets - Science@NASA

    Dec 3, 2025 · When a comet's orbit brings it close to the Sun, it heats up and spews dust and gases into a giant glowing head larger than most planets. The dust and gases form a tail that stretches away …

  8. What is a comet? - BBC Sky at Night Magazine

    Aug 26, 2025 · Simply put, a comet is a large body of ice and dust orbiting the Sun, sometimes seen as a bright object in the sky with a long tail streaming behind it. Wanderers of the Solar System, comets …

  9. Interstellar comet 3I/ATLAS approaches Earth today. How to Watch

    3 days ago · Today is one astronomers, stargazers and alien conspiracy theorists have been waiting for: interstellar comet 3I/ATLAS is as close to Earth as ever.

  10. Interstellar comet 3I/ATLAS update: track object passing Earth - Fast ...

    4 days ago · Interstellar comet 3I/ATLAS update: How to track the space object as it gets nearest to Earth The space object, which was only recently discovered by scientists, will pass closest to Earth …