(Not to scale) The main difference between active and inactive satellites is that active satellites amplify signals before re-transmitting them to Earth, while inactive satellites do not: Active satellites: Amplify transmitted signals before re-transmitting them to Earth, which results in excellent signal strength. Inactive satellites: Orbit space as junk, and are often spent rocket boosters. Here are some other things to know about satellites: Orbit Most satellites orbit in Low Earth Orbit (LEO), which is between 100 to 1,200 miles from Earth's surface. Size Satellites can range in size from toaster-sized CubeSats to school-bus-sized Hubble Space Telescope #science #astronomy #space #astrology

The Parker Probe is the first ever to "touch the sun" but also recorded its atmospheric environment. • What does the solar wind sound like? A wind of fast moving particles blows out from our Sun, and although space transmits sound poorly, particle impact and variable-field data from NASA's near-Sun Parker Solar Probe is being translated into sound. Video Credit: NASA, JHUAPL, Naval Research Lab, Parker Solar Probe; Processing: Avi Solomon #science #astronomy #space #astrology

“This record represents our hope and our determination, and our good will in a vast and awesome universe” #science #astronomy #space #astrology

The Parker Solar Probe is a NASA space probe launched in 2018 to make observations of the outer corona of the Sun. #science #astronomy #space #astrology

To see such far-off and faint objects, Webb needs a large mirror. A telescope’s sensitivity, or how much detail it can see, is directly related to the size of the mirror area that collects light from the objects being observed. A larger area collects more light, just like a larger bucket collects more water in a rain shower than a small one. #science #astronomy #space #astrology