Galaxies

A rough guess puts the number at 1 in 13 of all stars on the main sequence are type G stars - similar class to our Sun.

So around 7.5 billion to 30 billion.

Just their shapes, as see through a telescope.

A Lenticular Galaxy is a galaxy that is in between that of a elliptical and a spiral galaxy.

They are disc galaxies that have used up all of their interstellar material and therefore have little, if any, star formation.

They can be difficult to distinguish between elliptical galaxies if viewed side on.

See related links for more information and pictorial representation

No. Ursa Major and all stars visible from earth are in the Milky Way.

Since 1959 scientists have been developing the SETI program. Basically, SETI is a listening exercise. Scientists using radio telescope arrays around the world listen for transmissions from extraterrestrial intelligences.

Aside from the work done by NASA, RKA, JAXA, CSA, and ESA and several independent scientific space agencies, SETI is probably one of the only programs recognized as legitimate in the search for extraterrestrial life.

milky way!

They take some tacos and throw them in space and see if they hit another planet.

quasars (black holes), comets (if they come too close) and hyper nova(only of sun but it will take 5 billion years to do so)

this is called a gear

There are 2 (no, no, 3...)... The human race and people who ask this stuff on wiki answers (and people who answer this stupid answer....

It's twists in circles like the shaft of a screw has that spiral

You can find a jag in Pueblonia

The parallax angle of such distant objects is way too small to be measured. In general, the farther away an object, the smaller is its parallax angle.

In the centre of the universe. Maybe

You Can Catch Spike in Cydonia Castle and you can catch him for only 4 persent using starseeds

Remember, everything is relative. Hence, there is no such thing as an absolute speed - a speed must always be specified in relation to something.

From observations of large amounts of galaxies near us, it seems that we are moving with a speed of about 600 km/sec. Note that this is just the speed in relationship to nearby, or observable, objects. A speed compared to "the Universe" doesn't really make much sense.

Edwin Hubble.

1.65 x 1021 miles.

It's mean distance is actually 321 million light years which would give an answer of 1.89 x 10 21 miles.

spiral

Yes, all the stars that make up the constellation Sagittarius are part of our galaxy, the Milky Way.

40 Million Copies

What do you mean with "the" barred spiral galaxy? There is not one such galaxy; there are millions of them. Also, the only galaxies that can be said to "orbit" the Milky Way are some nearby dwarf galaxies. The galaxies in the Local Group (the group which includes the Milky Way) are gravitationally bound to the Local Group, but they don't exactly orbit one another; it's probably more like they orbit around their common center of mass.

It has all types of stars with different ages

Ever since the world and the solar system were created.