Billions & Billions, Thoughts on Life and Death at the Brink of the Millennium, Random House Publishing Group, Carl Sagan,Cosmology and the universe,Astronomy, space and time, universe book;compassionomics;century;curiosity;compassion;mortality;science gifts for adults;science book;cosmology books;solar system;science gifts;science books;inspirational gifts;gifts for history buffs;autobiography;abortion;carl sagan;atheism;cosmology;environment;death;critical thinking;life;essays;essay;memoir;religion;politics;philosophy of science;skepticism;physics;universe;popular science;space;sagan;philosophy;science;astronomy;history buff gifts;physics gifts;astrophysics;planets,, , United States, en-UShttps://www.penguinrandomhouse.comuniverse book;compassionomics;century;curiosity;compassion;mortality;science gifts for adults;science book;cosmology books;solar system;science gifts;science books;inspirational gifts;gifts for history buffs;autobiography;abortion;carl sagan;atheism;cosmology;environment;death;critical thinking;life;essays;essay;memoir;religion;politics;philosophy of science;skepticism;physics;universe;popular science;space;sagan;philosophy;science;astronomy;history buff gifts;physics gifts;astrophysics;planets, [BLURB],[CITY],,books, ebooks, biblet, Book2look