The total mass of outer space, often referred to as the mass of the universe, is estimated to be around (1.5 \times 10^{53}) kg. This includes both visible matter, such as stars and galaxies, and dark matter, which makes up about 27% of the universe's total mass-energy content. Additionally, dark energy constitutes about 68% of the universe, contributing to its overall dynamics but not its mass in the conventional sense. However, precise measurements remain challenging due to the vastness and complexity of the universe.
Outer space is outside the Earth, not anywhere on the surface of this planet.
There is every known element floating around in outer space, since that is where most of the elements on Earth originally came from. When a star that is 25 times the size of our own sun goes supernova, it explodes and sends out most of it's mass (24 solar masses) into outer space.
mass
There are lots of such particles, but the one probably meant is the neutron. Neutrinos have mass (we're not sure how much exactly; it's very small, but not exactly zero) and no charge also; the Z boson is another particle with mass (a fairly large one in this case, it's about as heavy as a technetium atom) but no charge.
Jupiter is the outer planet with a mass that is more than twice the total mass of all the other outer planets combined.
Your mass would still be 158 pounds in outer space. Mass is a measure of the amount of matter in an object and does not depend on gravity. Your weight, on the other hand, would be different in outer space because weight is the force of gravity acting on an object's mass.
If an item has mass, then its mass is constant regardless of where it goes ... whether it's on Earth, in the air, on the moon, or in space on its way from one place to another.
Outer space is much bigger than the solar system.
Zero is not correct. Your weight may be zero in parts of space, but not in others. Weight, however, is a different thing altogether to mass and it is important not to confuse the two. Mass is the amount of matter in an object and this remains the same.
If the space is in outer space there can be no gas against which a terminal velocity can occur
None.
In outer space, there is virtually no gravity.
Absolutely not! Any body has the same mass anywhere. The weight of a body is the effect of gravity on the mass.
the amount of matter in a given space; mass per unit volume
Dark energy (not much known) Mass (E = m*c^2) Momentum (of anything moving) Electromagnetic (in photons) ...
It depends what is in that gallon bucket. If its full of platinum it'll be a mite heavier then if it was full of pure vacuum. Its a confused question. Weight is how hard earth's gravity sucks on something. In outer space there is no weight. Mass is how much of stuff is in something - its measured by how much force it takes to accelerate it. In outer space mass remains an important factor in doing anything. And gallons are antique imperial units for volume. The weight or mass of a gallon of something can vary widely depending on the density of the material. From helium to uranium the density of stuff varies a lot.
outer (as in "outer space")