An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.
Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...
In 1877, an Italian astronomer mapped faint lines on Mars and called them canali, meaning channels or grooves. But the word ...
The United States government’s recent release of hundreds of previously classified Unidentified Anomalous Phenomena (UAPs) ...