A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

China’s spacecraft, Tianwen-2, has been hunting down its target — a so-called quasi-moon — ever since it launched from Earth ...

Building material samples from the University of Delaware spent six months mounted outside the International Space Station, ...

Known as one of the more outspoken UFO whistleblowers, Luis Elizondo took an interesting turn this week, claiming that ...

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Investigating an area of interesting light rock seen from orbit, Curiosity found some particularly weird-looking structures.

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

A new Mars Rover image captured by NASA's Curiosity mission has reignited debate over whether unusual formations on the Red ...

Last fall, President Donald Trump launched plans to “modernize” the White House by tearing down the East Wing a ...

As NASA prepares for long-term moon bases, scientists are working on how to grow food in lunar soil and deal with razor-sharp ...

Sometimes the most extraordinary places hide in plain sight, and the Dee Wright Observatory near Blue River proves that Oregon doesn’t need to send you to space for an out-of-this-world experience.

Add Yahoo as a preferred source to see more of our stories on Google. Two scientists want NASA to build a quarantine lab for alien germs on the Moon, rather than on Earth. The pair, microbiologist and ...