Backyard birders often get attached to their feathered visitors, believing the same birds are returning year after year. While the same species may indeed keep visiting the same yard for many years because it meets their needs, are they really the same individual birds?
This is an exciting time to be alive if you have an interest in celestial objects. From interstellar objects visiting our solar system to astronomers winning the Nobel Prize for their discovery of exoplanets, history is being made on many fronts in astronomy
Table of Contents  Radiation therapy (also called radiotherapy) is a cancer treatment that uses high doses of radiation to kill cancer cells and shrink tumors. At low doses, radiation is…
