Executive Orders are controversial because they allow the President to make major decisions, even law, without the consent of Congress. This, of course, runs against the general logic of the Constitution -- that no one should have power to act unilaterally.
Voyager 1 has since become the fastest and most distant man-made object in the Universe, travelling at around 61,500km/h at a distance of 17.6 billion km from the Earth. Perhaps most incredible of all, NASA is still in communication with it, despite radio signals taking 16 hours to reach it. Image Â© NASA.
The apparent magnitude of the Sun from the spacecraft was â16.3 (less than 30 times the brightness of the full moon). Voyager 1 was traveling at 17.043 km/s (10.590 mi/s) relative to the Sun. It would need about 17,565 years at this speed to travel a light-year.