The Cube Method. If you have a little bit of time on your hands, you can cut the stick(s) of butter into fourths and then cube into small pieces. The smaller the cubes, the quicker the butter will soften. Just leave them at room temperature for about an hour or until soft to the touch.
The first successful Venus flyby was NASAâs Mariner 2. This spacecraft was launched on August 8th, 1962 and made a successful flyby on December 14, 1962. So that calculates to 110 days from launch to arrival at Venus. The most recent spacecraft to fly to Venus was ESAâs Venus Express. It was launched on November 9th, 2005, and took 153 days to make the journey to Venus.
Obviously, if you want to travel to Mars, it would be best to do so at the point of opposition, when Mars is âonly 35-63 million miles away. That is why rocket scientists time their unmanned missions to Mars to coincide with opposition windows every 26 months. The most recent opposition window was in May 2016 and the next one will be in 2018. If you dream of one day being an astronaut on the first manned flight to Mars, be prepared for a long trip. Scientists estimate a trip to Mars and back would take 400-450 days.