"Papa had been the USSR Math Olympics champion when he was sixteen, but all he’d managed to achieve was working for Goldman Sachs. He had competed all over the Soviet Union, from Tallinn to Vladivostok, and had even gotten to shake Brezhnev’s hand in a big ceremony when he won. But nobody cared about the Math Olympics in America. Mama loved to remind me of all of Papa’s sacrifices for our family and told me to go easy on him, especially when he did things that were “good for his soul,” like blasting classical music in his car as loud as humanly possible without caring about his passengers—namely, me. That morning, I massaged my temples, hoping Papa would get the picture, amazed that even classical music could be offensive at a high volume."
"The space probe Voyager 1 left the planet in 1977. Any month, day, minute, second now it will enter interstellar space and become the furthest-reaching man-made object, and the first to leave the heliosphere. This will be one of the biggest moments in scientific history and we will never know exactly when it happened. Three things would signify that Voyager 1 had crossed the border of the heliopause: an increase in galactic cosmic rays, reversal of the direction of the magnetic field, and a decrease in the temperature of charged particles. Voyager 1 reports show a 25 percent increase per month of cosmic rays. But its signals take 17 hours to travel back to Earth at the speed of light."