4.6K views · 723 reactions | One key piece of engineering that makes the Solar Orbiter mission possible: the heat shield. ️   In the dark of space, it will face temps of minus 300 degrees Fahrenheit. At closest approach, 26 million miles from the Sun, it will encounter intense heat and radiation. Read more: https://go.nasa.gov/398Uxiw | NASA’s Goddard Space Flight Center | Facebook