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- 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 kilometers across and are composed of loose collections of ice, dust, and small rocky particles
- Comets - Science@NASA
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 from the Sun for millions of miles
- Harvard scientist believes interstellar comet could be alien craft: We . . .
Professor Avi Loeb said there are clear signs that the comet known as "3I ATLAS" could be an alien craft
- Interstellar Comet 3I ATLAS: What We Know Now - Sky Telescope
Observations have revealed the comet’s fuzzy coma, hinted at a weird tail, and suggested an ancient history
- Comet | Definition, Composition, Facts | Britannica
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 glowing comae and their long tails
- What Is a Comet? | NASA Space Place – NASA Science for Kids
What Is a Comet? The Short Answer: Comets are large objects made of dust and ice that orbit the Sun Best known for their long, streaming tails, these ancient objects are leftovers from the formation of the solar system 4 6 billion years ago
- Comets: Everything you need to know | Space
Comets are icy leftovers from the formation of the solar system Explore these 'dirty snowballs' in more detail with our ultimate comet guide
- What Are Comets | What Does a Comet Look Like - Star Walk
When a comet is in the inner Solar System, the Sun warms it up, causing the comet's ice to vaporize and release dust and gas particles The solar wind blows those particles off the comet, and we see the dust and ion tails
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