🧠 on Instagram: "The solar analemma is a perfect example of how Earth's tilt and orbit shape what we see in the sky. If you take a photo of the Sun from the same spot and at the same time every day for a year, it traces a figure-eight pattern. This happens because our planet is tilted on its axis (by about 23.5°) and moves around the Sun in an elliptical orbit. Together, these factors change the Sun’s position slightly each day. It’s a simple yet powerful visual proof that Earth isn’t flat, it’

Galaxies on Instagram: "A day on each planet is defined by how long it takes the planet to rotate once on its axis, and they vary dramatically across the solar system. Mercury spins slowly, so its day lasts about 59 Earth days. Venus rotates even more slowly and in the opposite direction, giving it the longest day of all—243 Earth days. Earth takes 24 hours. Mars rotates in about 24 hours and 37 minutes, making its day very close to ours. Jupiter spins the fastest, completing a rotation in just