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.

Sunday, December 3, 2023

Primordial Growth of Gas Giants

Did you know?

"Natajan emphasizes that "special conditions" are required to form these DCBHs: a small primordial cloud of hydrogen and helium gas sitting at just the right distance to a much larger star-forming galexy. This explains why high-redshift quasars are uncommon. "The conditions you need are pretty stringent to make direct collapse black holes," she says. Those conditions are rare in the early universe, but they are available. Luckily these monster black holes are very rare, so you can accommodate what is seen so far easily, without a problem."

Astronomy Magazine March 2021 "How to Grow a Giant Black Hole" pp. 16-23
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