How Would You Define an X-ray Source?
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...
Read MoreHow 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...
Read MoreHow 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...
Read MoreWhy 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...
Read MoreWhat Is a Calendar Used For? Calendar is a system used for calculating time. Calendars usually divide year into months and days. A year is the time it takes for the...
Read MoreWhen Will Halley’s Comet next Appear? Halley’s Comet appeared in 1910, then in 1986 and will next appear in mid-2061, during that most recent visit, five...
Read More