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Category: physics – Page 175

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Find out how scientists are mapping the black holes throughout the Milky Way and beyond as well as the answer to the Escape the Kugelblitz Challenge Question. Were you able to save humanity?

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Speaking at the 6th International FQXi Conference, “Mind Matters: Intelligence and Agency in the Physical World.”

The Foundational Questions Institute (FQXi) catalyzes, supports, and disseminates research on questions at the foundations of physics and cosmology, particularly new frontiers and innovative ideas integral to a deep understanding of reality but unlikely to be supported by conventional funding sources.

Please join us at www.fqxi.org!

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On Wednesday, CEO Elon Musk outlined how the company’s under-development rocket will deliver a “high fly rate” of a dozen launches in 2022. This will enable the ship to deliver actual payloads in 2023 before moving on to more ambitious goals like sending humans to the Moon and Mars.

The comments, made at the joint meeting of the Space Studies Board and the Board on Physics and Astronomy, outline how the stainless steel rocket taking shape in Texas will move from prototype curiosity to working ship.

It’s a project that could enable some of SpaceX’s most significant goals. First outlined in 2017 under the name “BFR,” the Starship is a stainless steel rocket that measures around 400 feet tall when paired with its Super Heavy booster. It’s fully reusable, designed to fly up to three times per day. It’s capable of sending up to 150 tons or 100 people into space at a time.

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Today, the greatest mysteries facing astronomers and cosmologists are the roles gravitational attraction and cosmic expansion play in the evolution of the Universe.

To resolve these mysteries, astronomers and cosmologists are taking a two-pronged approach. These consist of directly observing the cosmos to observe these forces at work while attempting to find theoretical resolutions for observed behaviors – such as dark matter and dark energy.

In between these two approaches, scientists model cosmic evolution with computer simulations to see if observations align with theoretical predictions. The latest of which is AbacusSummit, a simulation suite created by the Flatiron Institute’s Center for Computational Astrophysics (CCA) and the Harvard-Smithsonian Center for Astrophysics (CfA).

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If you think of very low temperatures, there’s a good chance you are picturing ice. Ice is a quintessential “cold” thing for us. But at extreme pressures, like in the core of large planets, something peculiar can happen. Ice can remain solid but have a temperature hotter than the surface of the Sun.

This type of water ice is called “superionic ice” and has been added to the list of around 20 phases water can structurally form, including ice, liquid, and vapor. Now, researchers report in Nature Physics the discovery and characterization of two superionic ice phases, having found a way of reliably and stably recreating the ice for longer than has previously been achieved to be able to study it.

One superionic phase extends between 200,000 and 60,000 times the atmospheric pressure at sea level and at a temperature of several hundred to over 1,000 ° C. The other phase extends to half the pressure experienced at the center of the Earth and with temperatures of thousands of degrees.

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