We only have one Earth, so we better not waste it! This hardcover, matte notebook lists the planets from Mercury to Pluto (we felt bad not to include them) and how we would be dead if we were living on these other planets. A great way to make the case humanity needs to take care of Earth while taking notes on any scientific discoveries. This notebook contains 75 lined, single pages and measures 5.75 inches x 8 inches. It's also hardcover with a matte finish, the perfect companion to any labwork or experiment!