The word "year," is normally a unit of time, but light-years measure distance. M. Aurelius/Shutterstock A light-year is a way of measuring astronomical distances in space. That doesn't make much sense because "light-year" contains the word "year," which is normally a unit of time. ...
Astronomers have measured the abundance of helium throughout our galaxy and in other galaxies as well. Helium has been found in old stars, in relatively young ones, in interstellar gas, and in the distant objects known as quasars. Helium nuclei have also been found to be constituents of ...
Irregular galaxies consist of gas, dust, stars, black holes, and all the other objects you may find in a solar system such as planets, moons,...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...
Which type of star cluster contains the most stars? What are the two types of spiral galaxies? What shape do irregular galaxies have? What is planetary astronomy? What is solar nebula? What comets are from the Oort cloud? What is a spiral galaxy?
that resemble a pattern. Constellations are areas of the sky where we have broken the sky into parts. All the stars in the constellations are withinthe Milky Way. A galaxy is a large collection of stars containing billions or trillions of stars. Galaxies exist outside our own Milky Way ...
When it comes to photographingdeep-sky objectsusing a camera and telescope, there are three main types of targets to photograph. These are Nebulae, Galaxies, and Star Clusters. Nebulae are my favorite type of deep-sky object to photograph due to their large size and varying color combinations ...
Already, this looks like a huge mistake: the new space telescope has produced embarrassing images of ancient galaxies that shouldn’t exist. We won’t dig into the Big Bang question here mostly because things are changing so fast almost anything I think to type will be obsolete before it ...
Spiral galaxies form a class of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae and, as such, form part of the Hubble sequence. Most spiral galaxies consist of a flat, rotating disk containing stars, gas and dust, and a central concentration of stars ...
Is ranch dressing a liquid or a solid? It's actually a 5th state of matter. What's the difference between apes and monkeys? Do sperm really race to the egg? Related:What's the difference between a fruit and a vegetable? Judy Jernstedt ...
Dark matter can explain why stars move as they do. Dark matter may also explain the rotation speed of galaxies. “Even though we can calculate how much dark matter there is in the universe, we still know little about what dark matter is. The particles in dark matter must either have a ...