"Luminous phenomena or the perception of a sonic boom are possible." The International Space Station jettisons a 2.9-ton pallet carrying used batteries on March 11, 2021. This photo was posted on Twitter by NASA astronaut Mike Hopkins (Image credit: NASA/Mike Hopkins via Twitter) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A nearly 3-ton leftover tossed overboard from the International Space Station is nearing its plunge toward Earth. The multi-ton Exposed Pallet 9 (EP9) was jettisoned from the space station back in March 2021. At the time, it was reported to be the most massive object ever tossed overboard from the International Space Station. Disposing of used...