NASA’s Lucy spacecraft obtained a close look at asteroid Donaldjohanson, a uniquely shaped fragment formed about 150 million years ago, during a flyby on April 20, 2025. The asteroid appears to be an elongated contact binary with an odd shape and is approximately 5 miles long and 2 miles wide.
"...an onboard control unit failed to turn the engines off because it wasn't receiving the necessary data from one of Luna-25's accelerometers, devices used to detect and measure motion. The accelerometer unit was not turned on, "due to the possible entry into one data array of commands with different priorities for their execution by the device,"
