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Galactic year. The galactic year, also known as a cosmic year, is the duration of time required for the Sun to orbit once around the center of the Milky Way Galaxy. [1] One galactic year is approximately 225 million Earth years. [2] The Solar System is traveling at an average speed of 230 km/s (828,000 km/h) or 143 mi/s (514,000 mph) within its ...
Nov 7, 2017 · It took the solar system about 500 million years to form, and it formed 4.6 billion years ago, so it’s reasonable to assume that Star Wars is about 5 billion years after the formation of the ...
- Even Stars Die
- Earth’s Fiery Demise
- Uncertain Models
After 8 billion years of happily burning hydrogen into helium are over, the sun’s life gets a little more interesting. Things change because the sun will have run out of hydrogen in its core – all that’s left is the helium. The trouble is that the sun’s core is not hot or dense enough to burn helium. In a star, gravitational force pulls all the gas...
It is widely understood that the Earth as a planet will not survive the sun’s expansion into a full-blown red giant star. The surface of the sun will probably reach the current orbit of Mars – and, while the Earth’s orbit may also have expanded outwards slightly, it won’t be enough to save it from being dragged into the surface of the sun, whereupo...
This 10% increase in the sun’s brightness, triggering the evaporation of our oceans, will occur over the next billion years or so. Predictions of exactly how rapidly this process will unfold depend on who you talk to. Most models suggest that as the oceans evaporate, more and more water will be present in the atmosphere instead of on the surface. T...
From what I can tell from the movies, it doesn't take very long to travel anywhere in the galaxy. The Falcon seemed to fly from the Tatooine in the outer rim to Alderaan in the core in a matter of hours...probably only 2-4 hours. But the Falcon was also known as one of the fastest ships of the galaxy, so other ships may have taken much longer ...
Sep 5, 2021 · An international team of astronomers flipped it again in 2018 and found that a planetary nebula is indeed the most likely solar corpse. The Sun is about 4.6 billion years old – gauged on the age of other objects in the Solar System that formed around the same time. Based on observations of other stars, astronomers predict it will reach the ...
Jul 29, 2023 · If the star is at least 2.2 times more massive than our sun, helium-to-carbon ignition is a relatively gradual process. But for less hefty stars, it occurs with an explosive flash. But for less ...
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Dec 17, 2019 · Not long ago, in our very own galaxy, Stanford Earth discussed the science of Star Wars with these experts on planetary formation, processes and habitability. On the volcanic planet Mustafar, Anakin duels with Jedi Master Obi-Wan Kenobi, ends up nearly submerged in lava and needs to be turned into a cyborg to survive.
