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The Solar System
Ever wondered if there is life on Mars? Or if Jupiter has five moons? Look no further; here is the category concerning all questions about our solar system and the known planets!
4,302 Questions
If pressure was stronger than gravity would this SOLar system have formed?
No; the Solar System could only form because gravity was stronger in this case. Whether gravity is stronger, or the gas pressure, will depend on a variety of circumstances, but mainly, a sufficiently large amount of gas needs to get together. Some sort of initial impulse, such as a nearby supernova explosion, can help - but the very first stars must have formed without such events.
Can you have a hypothesis for a solar system?
Yes, a hypothesis for a solar system could be: "If a star has a rotating disk of gas and dust around it, then planets will form within this disk as the materials accrete and coalesce under the influence of gravity, eventually forming a stable system of orbiting bodies."
How can you stabilize and unstable ship and correct a negative GM at the same time?
Change hull form (which is impractical) Lower Center of Gravity. (i.e. shifting heavy weights to a lower position)
What planets spin in the solar system?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, neptune and Uranus.
Not Pluto. 2 years ago it became a dwarf planet and does not count as a planet anymore.
What two forces affect the movement of the planets in the solar system?
There is only ONE force and that is gravity. I guess the question means gravity
and "centrifugal force". Unfortunately that's not a very scientific way of putting
things. You may need to say "centrifugal force" if a teacher says that's the answer.
I won't go into any more details because it may confuse you. Let's just say
astronomers use a more accurate description of what happens.
What begins the process the solar system formation?
Gas and dust in a nebula is disturbed by an outside force
What is the largest Universe the sun Milky Way galaxy Solar system or the earth?
Universe >> Milky Way galaxy >> Solar System > Sun >> Earth
How do you cominucate to a satellite on mars from earth?
That is done by radio waves. The Earth end of the raio links are maintained by large dish-type radio antennas, of diameter more than 10 metres.
Mercury (nearest Sun)
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto (these days not classed as a planet by some)
Why was the heliocentric model protested?
Because the Church had always held that the Earth was at the centre of the universe, and it took a long time to gather enough evidence to change this view. Just to say the Sun was at the centre wasn't enough to convince anybody, and it took around 150 more years for the heliocentric theory to gain acceptance after discoveries by Galileo, Kepler and Newton.
Galileo's position was that his discovery of the phases of Venus showed a major flaw in the Ptolemaic theory. This was correct but it did not prove the Copernican theory must be right, because Tycho Brahe came up with an alternative system that explained the phases of Venus while still having the Earth at the centre.
It contradicted the church, which held to the prevailing, centuries-old dominance of Aristotelian science.
What words definition is this belief that the earth is the center of the solar system?
Such principle of belief that earth is the centre of the solar system is geocentrism. The model is called a Geocentric model.
What is the biggest challenge with designing a complex system from scratch?
Finding the correct team for the assigned task.
There would be no life as we know it. There are only a few newly discovered life forms on earth that are not dependent on the sun for survival. Ex. there are some organisms that live by under water volcano vents at the bottom of the ocean that do not in some way feed on things produced by the photosynthesis (plants using sun light to transform nutrients into plant life)
Which planets can we set foot on?
We can set foot on all the planets in the solar system including the terrestrial planets, except for gas giants, which are Jupiter and Saturn. We can't set foot on Jupiter and Saturn because there's no solid surface and it's so gaseous. Uranus and Neptune are also a gas giant but they're considered an ice giant, so there's a solid surface in these 2 ice giants.
We can set foot in all planets except for Jupiter and Saturn.
Would the sun look bigger or smaller if there was no atmosphere?
It would make very little difference to its apparent size. It will be a lot larger and brighter. The moon has a very thin atmosphere so the sun there is very large and bright.
Is it be impossible to see any object the distance of the moon or the moon?
Our eyes can only see as far as the horizon, due to the curvature of the Earth. For instance, an observer standing on a hill 100 feet (30 m) in height, their horizon is at a distance of 12.2 miles (19.6 km). Obviously, without the restriction of a horizon, we can look out far into space on a dark night and see our moon and many stars and planets with the naked eye - even better with a telescope.
Why is it important to learn about what is outside of your solar system?
The same reason as it's important to learn about what is outside your house . .
Is Io Callisto Ganymede or Europa the brightest moon?
going by the magnitude scale, Callisto's the brightest.
Io 5.5
Europa 5.7
Ganymede 5.1
Callisto 6.1
