Violent Universe with Carl Sagan Part Three (Restored) | SciWorx Lost Lecture Series

This is part 3 of a restored version of The Violent Universe (1969) featuring a very young Carl Sagan, just 9 years after he earned his PhD.

This is a comprehensive report of astronomical theories, research, and discoveries. Visits thirty astronomers at their observatories throughout the world as they discuss pulsars, infrared galaxies, red giants, white dwarfs, cosmic rays, and redshift. Includes a motion picture view of a quasar.

Horribly Trashed Archaeological Site

There is a disturbing trend of trashed, defaced and vandalized ancient archaeological sites. It needs to stop. This video is another sad example of a sacred archaeological site that has been used as a trash dump. This site location is being kept secret at the request of the archaeological team studying the site.

What is SETI (Search For Extraterrestrial Intelligence)? | SciWorx Astronomy

The search for extraterrestrial intelligence (SETI) is a collective term for scientific searches for intelligent extraterrestrial life, for example, monitoring electromagnetic radiation for signs of transmissions from civilizations on other planets.

Scientific investigation began shortly after the advent of radio in the early 1900s, and focused international efforts have been going on since the 1980s. In 2015, Stephen Hawking and Russian billionaire Yuri Milner announced a well-funded effort called Breakthrough Listen.