Mars is similar to Earth in a number of ways: It has a 24.6-hour day and may have once had liquid water on its surface. Though life on Mars would likely resemble bacteria if it existed at all, the idea of human-like beings living on Mars has long captivated humanity. After American astronomer Percival Lowell came to believe, in the 1890s, that Mars had intelligently built canals, many science-fiction authors began to write about Martians. What effectively ended the trend of Martians in fiction? Discuss
Source: The Free Dictionary