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Category: space – Page 459

What If Physics IS NOT Describing Reality?

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Neils Bohr said, “It is wrong to think that the task of physics is to find out how Nature is. Physics concerns what we can say about Nature.” Well it turns out that if we pay attention to this subtle difference, some of the most mysterious aspects of nature make a lot more sense.

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Gods & Monsters: Space as Lovecraft Envisioned it

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H.P. Lovecraft is known as the father of the Cosmic Horror genre of fiction. The creator of Cthulhu and many other terrifying dark gods in his novels paints a bleak and decaying view of our world and the Universe. Today we’ll examine what it might imply if that nihilistic and grim view of reality was correct.

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Credits:
Gods & Monsters: Space as Lovecraft Envisioned it.
Episode 214, Season 5 E48

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DARPA-Funded Study Provides Insights into Blockchain Vulnerabilities

The architecture and evolution of planetary systems are shaped in part by stellar flybys. Within this context, we look at stellar encounters which are too weak to immediately destabilize a planetary system but are nevertheless strong enough to measurably perturb the system’s dynamical state. We estimate the strength of such perturbations on secularly evolving systems using a simple analytic model and confirm those estimates with direct N-body simulations. We then run long-term integrations and show that even small perturbations from stellar flybys can influence the stability of planetary systems over their lifetime. We find that small perturbations to the outer planets’ orbits are transferred between planets, increasing the likelihood that the inner planetary system will destabilize.

Chinese spacecraft acquires images of entire planet of Mars

BEIJING, June 29 (Reuters) — An uncrewed Chinese spacecraft has acquired imagery data covering all of Mars, including visuals of its south pole, after circling the planet more than 1,300 times since early last year, state media reported on Wednesday.

China’s Tianwen-1 successfully reached the Red Planet in February 2021 on the country’s inaugural mission there. A robotic rover has since been deployed on the surface as an orbiter surveyed the planet from space.

Among the images taken from space were China’s first photographs of the Martian south pole, where almost all of the planet’s water resources are locked.