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Honestly, I'm not qualified to answer this--it's beyond me, but now I'm keenly interested... (The best way to study for school is to get the info through research. Trust me, you'll remember it that way.)
Definition: An exoplanet aka extrasolar planet is simply a planet outside our solar system. Exoplanets are defined as planets orbiting a star (sun) other than ours.
Why we do it: They exist in our universe. Therefore they must in other solar systems. It says the search is specifically to find Earth-like planets that can -or do- support life. It is also categorize the types of planets and further map our region of the Milky Way.
Ultimately, it's done because humanity has wondered since the ancient Egyptians (one of the oldest cultures I personally know of) if we are alone in the universe. Some people have cited the creation myths of religions as proof alien beings have visited from other worlds, notably the Genesis creation myth. Hindu and Norse religions held there were multiple worlds beyond ours. Native American tribes such as the Cherokee (Grandmother Spider) and the Hopi Spider Woman myths among others. Even the Babylonians and Greeks had a concept of a place beyond Earth where beings lived.
That being said, some planets in our solar system (giants such as Jupiter and Saturn are classified as typical extrasolar planets). NASA plans to journey over the next 15 years because again, if we have a solar system with a planet that supports life, it stands to reason we are not the only solar system that has one (or more). NASA plans to study atmospheric conditions, concentrating on finding ozone, carbon dioxide and ozone.
What else can I help you with?
How do astronomers observe planets that are too far away to see?
Space Telescopes Planets that are orbiting stars that are far away creating fluctuations in the light that we see coming from the star. Astronomers can observe those planets by measuring the fluctuations of that light.
How do you find out what planets still exist and the planets that does not exist?
We determine which planets exist by observing them directly with telescopes or indirectly through methods like detecting their effects on nearby stars. To identify planets that likely no longer exist, scientists look for evidence of their past presence, such as remnants like asteroid belts or debris disks that may indicate the former presence of a planet.
What is the aspects of nature investigated by an astronomers?
Astronomers investigate a wide range of natural phenomena in the universe, including stars, galaxies, planets, black holes, supernovae, and cosmic radiation. They study the properties, composition, evolution, and interactions of these celestial bodies to better understand the workings of the cosmos.
Do all galaxies have planets in?
Probably, but impossible to tell as we are only just seeing planets within our own galaxy.
Can astronauts find out if human life exist in other planets?
if they can build some thing incredible then maybe
How many basic planets are there?
Currently there are 353 known extrasolar planets (that is to say, outside of our solar system), but it is unknown how many planets exist in the universe.
Which planet do most known extrasolar planet most resemble?
Of what we have found most are the size of Jupiter or larger. But we know many more extrasolar planets exist that we simply cannot detect. If we were to draw hypotheses on what planets are most abundant they would either be similar to dwarf planets. Or, if the reader does not view dwarf planets as true planets then planets the size of ones in the terrestrial zone like: Mercury, Venus, or Earth. Are probably the most abundant.
Why are astronomers finding planets with half the mass of Jupiter?
There are three main reasons for this phenomenon: 1). Those objects exist. 2). Technology has advanced to the level capable of identifying them. 3). Astronomers are looking for them.
Why water remain liquid on earth compared to other planets?
The earth is in what astronomers call the 'Goldylocks Zone': Just the right distance from our sun that liquid water can exist.
How do astronomers know that invisible stars exist?
By their gravitational effects.
What would the world be like if astronomers didn't exist?
we would not be on this earth
If there was no planets what will happen?
This question would not exist!
Do fairies exist on other planets and in other galaxies?
no fairies don't exist any where..
Does weathering exist on other planets or moons?
It obviously does.
How do astronomers know the black hole exist?
Astronomers know because they have studied star patterns and placements and know when there has been a change between where there is a black hole and where there isn't one.
Are the 8 planets the only planets?
Technically speaking there are only eight planets in our Solar System, those planets being: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. There is however many extrasolar planets (3639) that have been discovered so far. Billions more likely exist in our galaxy alone.
What is the gravitational pull of Planet X?
For many years an unknown planet was thought to exist, that caused discrepancies in the orbits of Neptune and Uranus. This was dubbed Planet X. With improved measurements from the Voyager space probes, this Planet X was disproved, most astronomers believe now that it does not exist - that there are no more large undiscovered planets beyond Neptune that are in orbit around our sun. Several minor planets have been discovered further out though.
