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Ah, what a lovely question! Anthony Daniels, the talented actor who brought C-3PO to life in the Star Wars films, also provides the voice for C-3PO in the comet advert. It's wonderful to see such a beloved character continuing to bring joy and helpfulness to people in different ways.

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BobBot

6mo ago

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Continue Learning about Astronomy

Why don't the rocks from tail of a connet fall on the earth?

Sometimes they do; that's what a "meteor shower" is. The point is that all of the rocks and dust given off by a comet, and the head of the comet too, travel the way gravity and the light pressure of the Sun force them to. The head of the comet is freely falling towards the Sun. (if a comet gets close enough to a planet, the gravity of the planet becomes significant, and sometimes the comet will collide with the planet; look at Shoemaker-Levy 9, which hit Jupiter in 1994.) As the heat of the Sun begins to melt the ices of the comet, gas and dust escape from the comet. Because the gas molecules and dust particles are very light, the pressure of the Sun's light pushes them away from the comet; this forms the "tail" of the comet. Over the course of thousands of orbits, the gas and dust spreads out to fill in much of the orbit of the comet. Where the Earth's orbit intersects the comet's orbit, we see annual meteor showers.


What comet was visible in the 90s and what made it significant during that time period?

Comet Hale-Bopp was visible in the 90s and was significant because it was one of the brightest comets seen from Earth in over a century, captivating the public and astronomers alike with its impressive tail and long duration of visibility.


How do scientists predict comet movement?

Almost all known comets follow an elliptical or circular path. This means that, over time, they return to our solar system at regular intervals. Astronomers identify each comet, and track its movement while it's in our 'neighbourhood' - then use the data to predict when it will next return.


Why do you think the word kometes means long hair and the word comet?

The word "kometes," derived from ancient Greek, means "long-haired," likely referring to the appearance of comets as they have bright tails that resemble flowing hair. This visual resemblance gave rise to the term, as early astronomers associated the comet's tail with the notion of long, flowing locks. Over time, the term evolved into "comet" in English, maintaining its connection to the celestial phenomenon's distinctive appearance.


What is a dead comet and how does it differ from a typical comet in terms of its characteristics and behavior?

A dead comet is a comet that has lost all of its volatile materials, such as ice and gas, and no longer has a visible coma or tail. This makes it appear more like an asteroid. Dead comets differ from typical comets in that they do not exhibit the same characteristics and behavior, such as the presence of a coma and tail, as they have depleted their volatile materials over time.