Due to the small size of Mars’ moon Phobos (about 20 by 25 km (12 by 16 mi)) and its rapid orbital motion, an observer on the surface of Mars would never experience a solar eclipse for longer than about thirty seconds. Phobos also takes only 7 hours 39 minutes to orbit Mars, while a Martian day is 24 hours 37 minutes long, meaning that Phobos can create two eclipses per Martian day. These are annular eclipses, because Phobos is not quite large enough or close enough to Mars to create a total solar eclipse. The highest resolution, highest frame rate video of a Phobos transit has been recently released from the Mastcam-Z on Perseverance rover. #science #astronomy #space #astrology

(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