National Aeronautics and Space Administrion

Since its inception in 1958, NASA has accomplished many great scientific and technological feats in air and space. NASA technology also has been adapted for many nonaerospace uses by the private sector. NASA remains a leading force in scientific research and in stimulating public interest in aerospace exploration, as well as science and technology in general. Perhaps more importantly, our exploration of space has taught us to view Earth, ourselves, and the universe in a new way. While the tremendous technical and scientific accomplishments of NASA demonstrate vividly that humans can achieve previously inconceivable feats, we also are humbled by the realization that Earth is just a tiny "blue marble" in the cosmos. Check out our "Thinking About NASA History" folder online as an introduction to how history can help you.

Thursday, September 28, 2023

High Redshift Quasars

Did you know?

"The relative dearth of high-redshift quasars means the conditions that form them are uncommon--i.e., a highly unusual set of conditions can do the trick, creating "seeds" that grow quickly into quasars. As University of Texas at Austin astrophysist Volkar Bromm says, "We only need very few seeds to explain the observed billion-solor-mass quasars at high redshift."

Astronomy Magazine March  2021 "How to Grow a Giant Black Hole" p. 19
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