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LOWEST ENERGY STATE. “The true ground state of hadronic matter may be strange quark matter (SQM). Consequently, observed pulsars may actually be strange quark stars, but not neutron stars. However, proving or disproving the SQM hypothesis still remains a difficult problem to solve due to the similarity between the macroscopical characteristics of strange quark stars and neutron stars.” https://lnkd.in/d-4qzTw View in LinkedIn

STRANGE DWARFS. “We investigate the stability of "strange dwarfs": white-dwarf-sized stars with a density discontinuity between a small dense core of quark matter and a thick low-density mantle of degenerate electrons. Previous work on strange dwarfs suggested that such a discontinuity could stabilize stars that would have been classified as unstable by the conventional criteria based on extrema in the mass–radius relation. We investigate the stability of such stars by numerically solving the Sturm–Liouville equations for the lowest-energy modes of the star. We find that the conventional criteria are correct, and strange dwarfs are not stable.” https://lnkd.in/dJXt729 View in LinkedIn

The spring growth of mosses on a local wall as they put forth their time capsules into the future. View in LinkedIn

A door in Girona. View in LinkedIn

LIFE WILL FIND A WAY. “The living world will endure, but we human beings cannot presume the same.”David Attenborough, A Life on our Planet. Header title from Michael Crichton, Jurassic Park. https://lnkd.in/dPsUy6C View in LinkedIn

WHEN THE SUN DIES. “But when the stars died, they vaporized or engulfed and incinerated their inner planets, leaving only the bodies that resided in the chilly outposts. Over time, the dwarfs shredded and consumed many of the survivors as well. These decimated systems offer a grim look at the fate of our own solar system when the sun dies five billion years from now.” https://lnkd.in/dpMBcCM View in LinkedIn

MIRROR EARTHS. “There are more than a dozen white dwarfs in our galaxy that are orbited by asteroids, comets and perhaps even planets -- entire graveyards of worlds. While the stars were alive, they rose every day in the skies of these worlds. They gently warmed the soil and stirred the wind. Living organisms may have soaked up their rays.” https://lnkd.in/dpMBcCM View in LinkedIn

“WHITE DWARFS must not be stars so much as the corpses of stars. Each white dwarf was once much like our sun and shone with the same brilliance. But then it began to run out of fuel and entered its stormy death throes, swelling to 100 times its previous size and brightening 10,000 fold, before shedding its outer laters and shriveling to a glowing cinder the size of Earth. For the rest of eternity, it will sit inertly, slowly fading to blackness.” https://lnkd.in/dpMBcCM View in LinkedIn

DEATH OF A STAR. “Once the nuclear fuel is entirely burnt out, there remains no sufficient pressure to resist the attractive force of gravity, consequently, the star experiences the stellar death, a phenomenon known as gravitational collapse.” https://lnkd.in/dnMiFPu View in LinkedIn