History Photographed on Instagram: "This is the phenomenon of astronauts temporarily having difficulty readjusting to Earth's gravity after spending time in space.⁠ ⁠ This condition, which is called orthostatic intolerance, is a condition where the bodies struggle to adjust to Earth’s gravity in an upright position. ⁠ ⁠ In space, their bodies adapt to microgravity, which weakens leg muscles and causes cardiovascular changes. ⁠ ⁠ Back on Earth, standing up can lead to a sudden drop in blood press

Explaining The Universe on Instagram: "Follow (us) @ExplainingTheUniverse to learn something NEW every day 🧠💫 Jupiter is the largest planet in the solar system, made mostly of hydrogen and helium with no solid surface. It’s known for its swirling storms, including the Great Red Spot, and its strong magnetic field. Surrounded by faint rings and at least 95 moons, Jupiter’s largest, Ganymede, is bigger than Mercury. The planet’s immense size and power make it a key object of study for understand

GREEK GATEWAY 🇬🇷 on Instagram: "🇬🇷 Amazing! See how the Ancient Greeks built the Parthenon at the Acropolis in Greece over 2,400 years ago! Video by @simple.history_ #greece #greek #greece🇬🇷 #greecestagram #ancientgreece #acropolis #parthenon #athens #athensgreece"