Whats the BIGGEST Object that we have ever recorded in space?

Question

That we know of.

Answer 1

unless you count large groups o objects such as galaxies and such, the pistol star, which is 100 times as massive as the sun and 10 million times as bright.

Answer 2

A galaxy could be an object, so could a black hole. The center of our galaxy and most galaxies has a super massive black hole inside of it. But, a black hole is only a single point of gravity so it is tiny.

Blue stars are the largest stars; here is a list of the largest known stars: http://en.wikipedia.org/wiki/Largest_star

Galaxies are mostly empty space, with tiny bits of matter inside of them called planets and stars. On the scale of a galaxy anything else is too minor to even discuss.

According to Wikipedia: http://en.wikipedia.org/wiki/Object
An object can be a single thing or entity, but in physics it can be a collection of things.

According to Wikipedia: http://en.wikipedia.org/wiki/Galaxy
"NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 17,000 parsecs in diameter and approximately 20 million parsecs distant." A parsec is 3.26 light years.

According to the same article
"Most galaxies are 1,000 to 100,000[4] parsecs in diameter and are usually separated by distances on the order of millions of parsecs (or megaparsecs).[8] Intergalactic space (the space between galaxies) is filled with a tenuous gas of an average density less than one atom per cubic metre. The majority of galaxies are organized into a hierarchy of associations called clusters, which, in turn, can form larger groups called superclusters. These larger structures are generally arranged into sheets and filaments, which surround immense voids in the universe."

So the biggest object ever recorded in space is the universe. It is the collection of all the galaxies and if you consider an object to be a collection of things then it has the be the largest possible collection; another words the entire collection--the universe.

Compared to the universe a galaxy is a tiny gain of sand floating in space near Jupiter. But, both a galaxy and the universe are so vast that they are mostly empty space. By that thinking blue stars are the largest objects we have observed in space. A star is a collection of super heated gasses with no extra space inside. They are plasma, the fourth state of matter, so they are not solid, but they are continuous and very dense. Compared to the density of a galaxy the density of a star is like comparing a near vacuum to a huge bowling ball.

The answer is either a blue star or the universe.

Answer 3

The biggest object (excluding galaxies and nebula's) is the red giant star Betelgeuse in the constellation Orion which is about 1000 times the radius of the Sun, with an outer surface that would be out past the orbit of Jupiter and is much greater than the Pistol star in volume but not in mass and so is much bigger (if you define big as taking up a large amount of room)

I hope this answered your question.

Answer 4

That depends on what you define as an "object".

Is a galaxy an object?

I believe it is, in the sense that it is something that has stable structure maintained by gravitation, and enough separation from other objects of its size that it can appear as a single object (e.g. what we see as a single point of light).

In that case, the largest object in the known universe is the galaxy cluster .... clusters of many entire galaxies that form a stable structure maintained by gravitational pull.

{edit}

I like Dan S's answer ... but just to have a fun debate ... I disagree that the universe can be considered an object because (a) it is not structurally stable or held together by gravity or any other known force (as far as we know it is expanding without restraint); and (b) it is not distinguishable from other objects of the same size (since there *are* no other objects the same size, as far as we know).

So I still contend that a galaxy cluster is the largest object we know.

Answer 5

Check this article out:

http://news.nationalgeographic.com/news/2006/07/060731-giant-blob.html

Answer 6

The largest things out there are GALAXIES..........or even Galxy clusters.......these are massive beyond our imagination.

Thank you come again.