In April we introduced A Google a Day, a daily puzzle that helps you practice both your trivia knowledge and your search skills. We have a team that works on coming up with new questions, but we want to make sure the questions continue to be challenging and diverse. As part of the new Guest Author program for A Google a Day, leading experts in various science, art, and literature fields will be writing questions on topics they’re passionate about to make sure you get compelling trivia questions on a wide range of topics.

The Guest Author program kicked off last week on May 31 with a question from our own Chief Internet Evangelist, Vint Cerf, who is recognized as one of the fathers of the Internet. He is also well-known for his vision with the InterPlaNetary Internet Project, a proposal on how to extend IP protocols to Mars and other spacecraft, and an intergalactic passion that inspired his A Google a Day question.

Each week, there will be one question written by a guest author. Today’s question is from renowned adventurer and explorer David de Rothschild in celebration of World Oceans day, a worldwide initiative to appreciate the ocean and promote ocean conservation.

To see upcoming questions from future guest authors such as the Barefoot Contessa Ina Garten, author of best-selling novel The Alchemist Paulo Coelho, Boeing test pilot Mike Carriker, animation historian Jerry Beck and more, keep visiting