Astronomers
The heliopause marks the outer boundary of our solar system. This is where the solar wind from the Sun meets the interstellar medium of space.
Mainly astronomers. But cosmologists and astrophysicists will also be interested in outer space.
The coldest planet in our solar system is Uranus, with temperatures reaching as low as -224 degrees Celsius. However, there may be even colder exoplanets beyond our solar system that have not been directly observed.
Of course, there are shadows in outer space (except or the sun itself.)
Voyager 1 and Voyager 2 have both left the heliosphere, but neither has left the solar system. The edge of the solar system is considered to be the outer boundary of the Oort Cloud, The exact width of the Oort Cloud is not known, but its estimated that it would take Voyager 2 about 300 years to reach the inner boundary of it. To reach the outer boundary of the Oort Cloud, truly leaving the solar system, would take Voyager 2 something like 30,000 years.
astronomers
astronomers
Outer space is much bigger than the solar system.
No, it's in your backyard. Of course it's in outer space!
Astronomers.
That is the correct spelling of "outer space" (space away from Earth orbit, or away from the solar system).
One, because the whole outer space is one solar system.
astronomy
The heliopause marks the outer boundary of our solar system. This is where the solar wind from the Sun meets the interstellar medium of space.
Astronomy is the study of outer space and the universe. This includes the solar system and earth in space.
Voyager I and II are pretty much on the edge of solar system.
Mainly astronomers. But cosmologists and astrophysicists will also be interested in outer space.