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Penrose diagram of an infinite Minkowski universe, horizontal axis u, vertical axis v. In theoretical physics, a Penrose diagram (named after mathematical physicist Roger Penrose) is a two-dimensional diagram capturing the causal relations between different points in spacetime through a conformal treatment of infinity.
Created using images of the MarsDial on the Opportunity rover. In the following list, day and year refer to the synodic day and sidereal year of the particular body: Mercury Because orbital resonance makes the day exactly two years long, the method of plotting the Sun's position at the same time each day would yield only a single point.
Improve Outline of futures studies. The entire subject and Wikipedia's coverage of it is intended to be summarized in the Outline of futures studies. It in turn is part of Wikipedia's outline system which is one of Wikipedia's contents systems. Please look it over and fill-in missing topics.
This is an accepted version of this page This is the latest accepted revision, reviewed on 10 December 2024. There is 1 pending revision awaiting review. Scientific projections regarding the far future Several terms redirect here. For other uses, see List of numbers and List of years. Artist's concept of the Earth 5–7.5 billion years from now, when the Sun has become a red giant While the ...
A steady increase in the Hubble constant to infinity would result in all material objects in the universe, starting with galaxies and eventually (in a finite time) all forms, no matter how small, disintegrating into unbound elementary particles, radiation and beyond. As the energy density, scale factor and expansion rate become infinite, the ...
We have to fight wrong with everything in us, denounce anyone who demonizes Black and brown people, immigrants, women and the LGBTQ community. But we can do that without debasing ourselves.
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A black hole with a mass of around 1 M ☉ will vanish in around 2 × 10 64 years. As the lifetime of a black hole is proportional to the cube of its mass, more massive black holes take longer to decay. A supermassive black hole with a mass of 10 11 (100 billion) M ☉ will evaporate in around 2 × 10 93 years. [45]