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- In roughly 5 billion years, the Sun will cool and expand outward to many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets.
en.wikipedia.org/wiki/Formation_and_evolution_of_the_Solar_System
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Feb 12, 2015 · In a few billion years, the sun will become a red giant so large that it will engulf our planet. But the Earth will become uninhabitable much sooner than that.
Pressure partially supported the gas and so did not orbit the Sun as rapidly as the planets. The resulting drag and, more importantly, gravitational interactions with the surrounding material caused a transfer of angular momentum , and as a result the planets gradually migrated to new orbits.
At its equator, the Sun completes one rotation in 25 Earth days. At its poles, the Sun rotates once on its axis every 36 Earth days. The part of the Sun we see from Earth – the part we call the surface – is the photosphere. The Sun doesn’t actually have a solid surface because it’s a ball of plasma.
Rocks that escaped the pull of planets were left as asteroids, scattered through the solar system without a permanent home. Many of these rocks orbit the Sun in an area between Mars and Jupiter known as the asteroid belt.
Jan 27, 2021 · It came from a giant molecular cloud — a collection of gas up to 600 light-years in diameter with the mass of 10 million Suns — which had been circling the Milky Way for who knows how many ...
Although significant strides were made in the area, we should learn more about primary disc structure and evolution, pebble accretion, role of giant planets formation in the inner planets’ Earth/volatiles delivery, geochemical constraints, planetesimals and planet embryos formation and dynamics.
The Sun is the star at the center of the Solar System. It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies.
