Tag
#orbits
3 articles
Astronomy & Cosmology
Orbital Mechanics: The Art of Falling Sideways
Why astronauts float despite full-strength gravity, why reaching orbit means going sideways not up, and why a higher orbit is a slower one.
10 minAug 24, 2026
Physics
Kepler's Laws of Planetary Motion
How Kepler's stubborn refusal to ignore a tiny discrepancy in Mars's orbit produced three laws that Newton later derived from a single inverse-square force.
10 minJul 14, 2026
Astronomy & Cosmology
How We Find Other Worlds
Exoplanets are found not by their light but by the shadow they cast and the tug they exert — a periodic dip in starlight and a Doppler wobble in the star's spectrum.
9 minJul 12, 2026