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FRAGMENTED METEORS. “Here, we show that a fraction of long-period comets are tidally disrupted after passing close to the Sun, each producing a collection of smaller fragments that cross the orbit of Earth.” https://www.nature.com/articles/s41598-021-82320-2 View in LinkedIn

AN IMPORTANT PAPER by astrophyscists Amir Siraj, and the famous Professor Abraham Loeb, of the Department of Astronomy, Harvard University, suggests that the breakup of a long-period comet was at the origin of the dinosaur extinction. https://www.nature.com/articles/s41598-021-82320-2 View in LinkedIn

METEOR FINGERPRINT. “Meteoric iridium content is more than that of crustal materials by nearly a factor of 10(4). So, if something does hit the earth from outside, you can detect it because of this great enhancement.” A classic summary of global iridium anomalies, which suggests that iridium rich meteor may have contributed to the simultaneous demise of the dinosaurs, flora and fauna. https://lnkd.in/e-iNGMJz View in LinkedIn

POPULAR CANDIDATE METEOR for the extinction of the dinosaurs is the well documented Chicxulub-gravity-anomaly which is the relic of a massive impact crater. https://lnkd.in/eqAYpQg2 View in LinkedIn

FRAGMENT FROM NATURE features an unusual article on the metabolic consequences contributing to the extinction of the dinosaurs caused by a massive meteor(s). In general, it is accepted that a giant meteor(s) was the cause of the extinction, and there is some debate about which meteor it may have been, although there are only 2-3 candidates. https://www.nature.com/articles/s41598-021-82320-2 View in LinkedIn

Hubble images have utterly changed the way we think of the cosmos, from a dark, cold and empty place to a vibrant, dynamic habitat. https://lnkd.in/eWq3Y_st View in LinkedIn

SECOND COMET FINGERPRINT. “The Zhamanshin crater, the largest confirmed impact crater on Earth formed in the last ~ Myr (an order of magnitude smaller in radius than Chicxulub), shows evidence that the impactor may have had a carbonaceous chondritc composition, providing support to our model.” https://www.nature.com/articles/s41598-021-82320-2 View in LinkedIn

GOLDFISH THAT DRIVE. “These results demonstrate how a fish was able to transfer its space representation and navigation skills to a wholly different terrestrial environment, thus supporting the hypothesis that the former possess a universal quality that is species-independent.” https://www.sciencedirect.com/science/article/abs/pii/S0166432821005994?dgcid=author View in LinkedIn

COSMIC STRUCTURES. “Perturbations on scales smaller than galaxy clusters are erased, and structure formation is ‘top down’: large objects form first.” https://lnkd.in/e6ifiQMn View in LinkedIn

DARK MATTER. “The nature of DM affects the evolution of the density perturbations. Cold dark matter (CDM) decouples when non-relativistic, and has very small velocity dispersion today. Hot dark matter (HDM) decouples when relativistic and has non-zero velocity dispersion today.” Thus dark matter is closely interconnected to gravity. https://lnkd.in/e6ifiQMn View in LinkedIn