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.

Friday, September 29, 2023

Cosmic History

Did you know?

"This early era of cosmic history remains out of reach for observers. So to investigate it, theorists perform sophisticated computer simulations, which help tease out what happened as pristine clouds of hydrogen and helium gas gravitationally collapsed. According to calculations these clouds fragmented into multiple clumps that formed stars with masses up to 500 Suns. These early beacons lived fast and died young shining with millions of times of energy of our Sun but lasting only a few million years. They died in studendous supernova explosions and their cores collapsed into black holes with 100 to 200 solar masses."

Astronomy Magazine March 2021 "How to Grow a Giant Black Hole" pp. 19-20

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