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Why is it cheaper to send space probes to planets rather than people?
Wiki User
∙ 13y ago
Space probes don't need air, water, food, sanitary facilities, or tightly controlled limits of
temperature, acceleration, and exposure to radiation.
They also don't need to be returned to earth.
Wiki User
∙ 13y ago
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Do astronauts visit planets?
No, not yet at least. The only object that astronauts have been to other than Earth is the moon, which is a moon rather than a planet. There other planets are much farther away, but there are some plans to land people on Mars.
Why are the gas planet moons not considered planets?
Io and Titan are moons because they orbit planets (Jupiter and Saturn respectively).
What astronomer discovered that the orbits of the planets are elliptical rather than round?
Johannes Kepler.
Is there only 8 planets in the solar system?
There are only 8 planets because they scientific community kept finding other small or dwarf planets further out from Pluto. So rather than add planets to the nine as we find smaller and smaller planetoids the decision was made to just call the larger 8 planets, planets and everything else planetoids or something like that.
How is moon different than a planet?
The moon orbits the planet Earth rather than the sun, so it is considered a moon.
Does the moon revolve round the planets?
Moons orbit planets Or rather moons and planets orbit their barycenter.
Is it cheaper to leave a fluorescent light on or switch it on and off?
Always cheaper to switch it off and on rather than leaving it on.
How much cheaper is it to buy HP ink in bulk rather than one at a time?
As with many products it is generally cheaper to buy HP ink in bulk rather than individually. How much cheaper depends on the store the ink is bought at, the amount and the colour variations.
Is it cheaper to shop at supermarket co UK online?
No it is not cheaper once you factor in the shipping. It would be cheaper for you to get the items in person at a grocery rather than pay the shipping charge.
Why do most retail prices end with 99 rather than a whole number?
to make it look cheaper to make it look cheaper
Why it cheaper to transport goods by rail rather than roads?
coal was in abundance and was very cheap thus the running of the trains was cheaper
Do astronauts visit planets?
No, not yet at least. The only object that astronauts have been to other than Earth is the moon, which is a moon rather than a planet. There other planets are much farther away, but there are some plans to land people on Mars.
How is it cheaper to use the nickel rather than a penny?
So the penny is history but I am wondering how is it cheaper to use the nickel 5 cent piece?
Why did Babylonian priests use the planets and the stars?
For Astrology rather than Astronomy.
How is gravity used in a sentence?
Earth has gravity rather than other planets.
Why are the gas planet moons not considered planets?
Io and Titan are moons because they orbit planets (Jupiter and Saturn respectively).
How do planets make their own light?
In general, planets don't make their own light. Rather, they reflect the light of the sun. It is possible to see lightning in the atmospheres of some planets, but that probably doesn't count.
