probably not unless rocks are a reusable rescource
yes.
Nobody made Halley's Comet, and there isn't any purpose to its existence. It simply is.
Yes. Halley's Comet is a comet that orbits our sun, and the definition of "Part of the solar system" is 'Any object that orbits our sun.'
No there is not any okay now stop asking
You can't see Halley's Comet at any time of the year now. It was last seen from Earth in 1986 and won't be seen from Earth again until 2061. It orbits the Solar System, taking about 75 to 76 years to do so, so it can only be seen about that often from Earth.
Same as any other comet: away from the Sun.Same as any other comet: away from the Sun.Same as any other comet: away from the Sun.Same as any other comet: away from the Sun.
First, we have only limited information about the mass or composition of Halley's Comet, so we cannot give any even approximate value (on Earth) to the raw materials. Second, like in real estate, location is everything; the ices and gasses may be relatively cheap of themselves, but they are already in space, and if we could capture it, it would save us the cost of lifting it out of Earth's gravity well. Finally, a painting is a couple of bucks worth of cloth and paint; the value comes from the beauty of the thing. Ditto Halley's Comet; even if it were possible to capture the comet and convert it into an atmosphere for a space habitat, the sentimental value alone would make it impossible to do. Comets are plentiful; we can leave this one alone, like a historic building.
g comet
usable. Do you have any usable bus tickets?
Any freshwater on Earth is usable
No. Halley's comet does not pose any threat or Earth.
stupid old comet encke doesn't have any eccentricity at all!