Larger craters can have terraces, central peaks, and multiple rings. Copernicus is a large crater (93 kilometers or 60 miles wide) on the Moon. The inner walls of the crater have collapsed to form a series of step-like terraces, and a central peak is visible in the center of the image. Apollo 17 image courtesy of NASA. A complex crater in the northern region of Mars.
Self-published authors could be paid as little as $0.006 per page read under new rules planned by Amazon. Writers who make their works available through Amazonâs Kindle Owners Lending Library, and a similar service called Kindle Unlimited, will no longer be paid per copy downloaded following a move announced last week.
Starting today, you can sign up for Amazon's Kindle Unlimited, a new service that grants access to 600,000 e-books and several thousand audiobooks for $9.99 a month.Contrary to what you might think, the subscription isn't stuffed with self-published titles at the expense of acclaimed books.rom a customer's perspective, is Kindle Unlimited a great deal? Pricewise, it's more or less on par with similar services such as Oyster ($9.95 a month for access to more than 500,000 titles) and Scribd ($8.99 a month for access to more than 400,000 titles).