What do you call a group of stars close together?
117696
Cluster.\n\nEDIT: constellations are stars that make a connect-the-dots type shape in the sky. However, the stars that make up a constellation can be VERY far apart. A star cluster is a situation where two or more stars are gravitationally bound to each other.
1114431
Circle of Stars.  It is a Yahoo group.
601946
As many as there are stars in the sky.
1068516
Stars are classified by their spectral type and absolute magnitude. The main spectral types run OBAFGKM, in order of decreasing temperature.  The absolute magnitude is the brightness of the star corrected for distance. A plot of these two characteristics for a group of stars is called a Hertzsprung-Russel diagram.\n\nCan't help with the biology stuff, sorry.
480373
stars, planets, comets, meteors
680419
A star is a massive body of plasma in outer space that is currently producing or has produced energy through nuclear fusion. The most familiar and closest star to the Earth is the Sun. Unlike a planet, from which most light is reflected, a star emits light because of its intense heat. Scientifically, stars are defined as self-gravitating spheres of plasma in hydrostatic equilibrium, which generate their own energy through the process of nuclear fusion. Stellar astronomy is the study of stars.
77735
Some stars might have a solar system, but not all do.  Some stars are actually two "suns" orbiting around one another (called a binary star) but appearing to the unaided eye as a single star.  Some are even three stars together, such as alpha centauri, which is the closest "star" in the sky--though it is actually three stars that look like one.  Some are stellar clusters, where many of these "suns" are all bunched close enough to appear as one star.  Some are entire galaxies, with billions of stars, but so far away that they appear to be a single star from earth.  Some are stellar clusters, where many of these "suns" are all bunched close enough to appear as one star.\n\nSome things you might think are stars are actually planets.\n\nSome are dead "suns," where the fuel for the nuclear fusion that makes the sun burn has all been expended, leaving a big mass of iron, that glows white-hot for many years before turning dark.  If you look at these so-called "white dwarves" through a powerful telescope, you can see a faint ring of matter that has been blown away in the explosion that came when the star died.  Some stars are huge, and some are small.\n\nSome of the stars we have been able to see have solar systems of their own, which we detect by the slight wobble caused by the gravitational pull of the planet (or planets) as it orbits.
354510
By stars, you mean women, and by telescope, you mean co-ck right?\n\nAnd yes.
41532
the sun is a star because it is. There are other stars in the universe that have planets revolving around them. All the stars you see in the sky are like the Sun once you get close enough. From those stars, our Sun just looks like another star in the sky.
927930
Look up "the nebular hypothesis".  you also are confusing the Milky Way (a disk shaped system of a hundred billion stars or so of which our sun is a part) and the Solar System (our sun and its surrounding planets and other assorted detritus.)\n\nhttp://en.wikipedia.org/wiki/Solar_nebula
606528
200 billion stars in the Milky Way.
1057880
It's possible, but very, very unlikely.  Even when two galaxies "collide," stars do not hit each other.  The distance between stars is much, much, much larger than the diameter of a star.  It's kind of like two cars driving toward each other, only one is in New York and the other is in L.A.  It's possible that they will collide, but it's very unlikely.
42325
Check out the Astrophotography Groups.
614661
The closest star to the Earth is the actually Sun, at a distance of 8.3 light minutes (93 million miles), but I suppose you weren't asking about that. \n\nThe next closest star is Alpha Centauri, which is 4.3 light years away.
998170
Our solar system is tucked into a corner of the galaxy where the stars are scattered far from each other.\n\nThe stars are denser closer to its centre.
15235
It is estimated that there are approximately 200 million stars in the Milky Way and each one has the potential to have a "solar system" of some type.  Depends on many factors and the type of planets that can exist around a particular star also have many factors.  A number of "solar systems" have been found around other stars.  A current list of them can be found at exoplanets.org
312576
Stars are big fiery balls of gas. Essentially the gases cluster together and become stars through gravity and fusion. It's a rather complicated process; check the link below for a more detailed explanation.\n\nStars appear to be in our sky because they are in space. Most stars appear to be small points of light, although many of these stars are smaller than our sun. The sun simply appears larger because it is much nearer to the Earth.