you can on earth but you would have to wear a astronaut suit with oxygen to breathe because there is no oxygen in the atmosphere
Of course they can - as long as they are in their spacesuits or habitats. Out in the open? No.
No, Sedna is a dwarf planet located in the outer reaches of the solar system and does not have an atmosphere that could support human respiration.
Astronauts fly in rockets to the moon. They need to wear special clothing and masks so they can breathe because there is no oxygen in the solar system.
"Our solar system." The "part of our galaxy" that's in our solar system is the solar system.
Our Solar System is called the Solar System, Why?, what do you Aliens call it.
No. There is one star in our solar system, and no other solar systems within it.
The solar system
My solar system (and yours if you are from Earth) is just called "The Solar System".
When the Moon was formed, the Solar System WAS already a solar system.
There are no exoplanets in our solar system. By definition, an exoplanet is a planet that is not in our solar system.
It is a part of the solar system, however, it is not apart of the solar system.
The Milky Way is not in our solar system. Our solar system is in the Milky Way. There are no galaxies in our solar system.