This thesis focuses on the study of transient and variable radio sources in the universe. Transient signals, unlike a source constantly visible, change in their brightness (or flux) over a certain... Show moreThis thesis focuses on the study of transient and variable radio sources in the universe. Transient signals, unlike a source constantly visible, change in their brightness (or flux) over a certain length of time. While there are a plethora of transients over short intervals in radio astronomy that last less than a minute, this thesis will primarily cover those which play out over many years and decades. Show less