Veterinarian Philip Fox mounts a heart monitor on the side of Oliver, a golden retriever, at the Animal Medical Center on December 10, 2012 in New York City. (John Moore/Getty Images)
Justine Lee: Associate director at Pet Poison Helpline, and author of "It's a Dog's Life... but It's Your Carpet" and "It's a Cat's World... You Just Live In It"
Tens of thousands of people around the world have said they want to go to Mars, even if it means they will never return to Earth. Dozens of them were in the crowd Tuesday night at the Fitzgerald Theater for Science Night Minnesota — Mission to Mars. Read about Science Night.