Astronomy
Chaos and Destruction: Dead Star’s Cannibalism of Its Planetary System Is Most Far-Reaching Ever Witnessed
Astronomers mining an increasingly rich trove of TESS exoplanet data
Here’s the European Space Agency’s 3-D map of over a billion stars
How Can Black Holes Point to the Creator?
From SciTech Daily: Don’t Miss Prime Viewing of Mars-Jupiter Conjunction
At Astronomy Now: MeerKAT paints a mesmerising portrait of the Milky Way
Eric Hedin and our cultural moment
UD welcomes our new News anchor. As a starter for reflection, let’s clip from his current book: Naturalism holds that nature is all there is,and that the order of the universe, including the order of the living world,is merely the result of the laws of nature, or, as some put it, of “chance andnecessity.” [Jerry] Coyne went a step further. He insisted that this view cannoteven be questioned in a public university science course—or to be moreprecise, cannot be questioned even in a cross-disciplinary course on sci-entific discoveries and their larger cultural implications.But the question as to whether philosophical naturalism is true istoo important to shove into a corner. This and other closely related ques-tions are precisely those anyone striving Read More ›
First images of the black hole thought to be at the center of our galaxy released
FOR REFERENCE: Globular Cluster M55 as illustrating apparent aging of our galaxy (& cosmos)
It seems helpful to illustrate cosmological scale apparent aging as stars depart main sequence: An idealised, Hertzsprung-Russell chart for Hydrogen-rich balls prone to become fusion furnaces is: Here is a comparative plot (for open clusters), constructing a “clock” by projected pattern as a cluster ages, in effect seeing what is left as a candle burns down: This can be taken as illustrative of how our cosmos shows entropy-associated aging on the grand scale. Further illustrative, here is a NASA-derived cosmological timeline model, integrated with fine tuning: Speaking of fine tuning, Barnes et al summarise: All of this ties to core thermodynamics: Food for thought. END