ever expanding according to Albert Einstein
The most massive elementary particle known to exist in the universe is the top quark.
One would be that they both have a massive object in the center.
The biggest single thing in the universe that has been discovered is VY Canis Majoris, an incredibly massive star.
Mostly in galaxies, where they can form Super Massive Black Holes.
It doesn't really explain it as describe it. Think of the universe as sort of the smoke and debris that resulted from a massive explosion.
By the gravitational collapse of massive stars - once they stop producing energy.
We wouldn't have the heavy elements... and as a result, we wouldn't exist.
Because you're comparing it to the universe. Compare it to a grain of sand and it looks massive.
In the interior of certain massive stars.
Well neither, you or I would exist. Without the influx of heavy elements, the Universe would be a very sterile place.
Perhaps the most massive of all "singular" objects in the universe is a super-massive black hole.Certainly a galaxy that has many black holes in it and billions and billions of stars has more mass and more gravity than any star or smaller galaxy. But as regards "point objects" in our uinverse. The most massive black holes, the so-called super-massive black holes, are the ones with the most gravity.
All galaxies are massive clusters of stars scattered across the universe. Many galaxies take the same form, for instance, spiral and elliptical galaxies. Some galaxies also have a black hole in their center.