Voyager 1 crossed into interstellar space in August 2012 and still transmits from more than 24 billion kilometres away on about 22 watts, less power than a fridge bulb, with each signal taking over 22 hours to reach Earth Saving Tips September 2, 2026 On 25 August 2012, at 121.7 times the Earth–Sun distance, the particle counters aboard a spacecraft the size of a…
