Good ways to learn the latest astronomy news are to read astronomy periodicals, visit websites devoted to astronomy, and read updates from space-related organizations. Magazines such as Sky and Telescope and Astronomy Magazine are published monthly and are devoted exclusively to astronomy news, while Scientific American features frequent astronomy updates.
Websites such as Space.com also feature the latest astronomy news and allow visitors to subscribe to receive periodic updates on the latest discoveries and developments. Organizations such as NASA also have websites that provide the latest astronomical news and updates on its missions. NASA.gov is devoted almost exclusively to news and updates on its current and upcoming missions, and SpaceX.com has a section devoted to updates on its projects.