Traveling Through Earth, the Sun or the Universe
SMRTR summary
New research suggests Earth's inner core is less solid than previously thought. This could affect a hypothetical tunnel through Earth's center. Calculations show such a journey would take about 38 minutes, based on Earth's density and gravitational forces. Similar principles can estimate travel times through the Sun (80 minutes) and distances between galaxies. The concept also relates to black hole formation and primordial black holes as potential dark matter candidates.
SMRTR provides this summary for quick context. The original article belongs to Medium.
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