A second full moon in a calendar month will occur on May 31 and be best seen at moonrise on May 30. Why is the Blue Moon one of astronomy’s most misunderstood terms?

For all its ancient, familiar features, the Moon is still changing—and sometimes in dramatic ways. Scientists recently identified a fresh 22-meter-wide crater by comparing orbital images taken years apart, revealing a relatively recent impact that no one ...

NASA unveiled nearly $1 billion in new moon base contracts Tuesday as its top official called for less reliance on taxpayer funding and a faster path to putting astronauts on