YNASA SHUTS DOWN as 3IATLAS Reaches Mars ☄️ Latest Images and Updates. Part3 #3IATLAS #3iatlasupdate #NASA #space #galaxy

ESA - European Space Agency on Instagram: "Have we found a new planet? 🪐 Astronomers using the James Webb Space Telescope have found strong evidence of a giant planet orbiting a star in the stellar system closest to our own Sun, Alpha Centauri. Visible only from Earth’s Southern hemisphere, the Alpha Centauri star system is made up of the binary Alpha Centauri A and Alpha Centauri B, and the faint red dwarf star Proxima Centauri. While there are three confirmed planets orbiting Proxima Centauri

Explaining The Universe on Instagram: "@ExplainingTheUniverse teaches you something NEW everyday day 🧠💫 The ancient Greek scholar Eratosthenes accidentally became the first person to measure the Earth’s circumference around 240 BCE. He noticed that at noon on the summer solstice in Syene (now Aswan, Egypt), the Sun shone directly into a well, casting no shadow, while at the same time in Alexandria, a stick did cast a shadow. By measuring the angle of the shadow in Alexandria (about 7.2°) and k