How Would You Define an X-ray Source?
A source of X-rays is something that emits X-rays. In space, astronomers search for X-ray sources. Radiation emitted by objects in space can take…
Tag
Galaxies
How Will You Describe Quasars?
Quasars are astronomical objects of very high luminosity found in the centers of some galaxies and powered by gas spiraling at high velocity into…
Why Is Our Galaxy Shaped like a Spiral?
A galaxy is a huge number of stars grouped together. Our galaxy contains about 1,00,000 million stars. It looks like a disc with a flat cen
What Is the Milky Way Galaxy?
The Milky Way, or Galaxy, is the whole concourse of stars and other bodies which can be seen stretched across the heavens. It includes our o
How Many Stars Are There in the Universe?
How Many Stars Are There in the Universe? No one knows how many stars there are in the universe. We cannot see all the stars, much less coun