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Loading contentScience-based calculators: your age and weight on other worlds.
In-depth, individual pages in this category.
Your age in Mars years — the concept and the science.
Your age in Venus years — the concept and the science.
Your age in Mercury years — the concept and the science.
Your age in Jupiter years — the concept and the science.
Your weight on the Moon — the concept and the science.
Your weight on Mars — the concept and the science.
A group of physics-based tools that recast everyday questions — how old you are, how much you weigh — using real planetary data. Each tool is grounded in published orbital periods and surface gravities. These are science, not astrology. Individual explainers live under this category as entries.
We continue to expand this category. Upcoming material includes:
Generate a birth chart wheel from a date, time, and place.
Find the sun sign traditionally linked to a birth date.
Estimate the Ascendant from birth time and place.
Find the sign the Moon occupied at birth, in tradition.