On March 13, 1997, thousands of people across Arizona looked up and saw a silent, triangular craft gliding overhead. It was massive so large witnesses said it blocked out the stars. The military gave ...

Sources, including Secretary of State Marco Rubio, New York Democratic Senator Kirsten Gillibrand and former Director of ...

The US Congress has seen testimonies from "UFO witnesses" this year, with more evidence than ever suggesting alien ...

Before Ingenuity ever flew on Mars, it had to prove it could survive the impossible: flight in an atmosphere 100 times thinner than Earth’s. Engineers built a special vacuum chamber, removed nearly ...

In 2007, short bright radio signals which reappeared at intervals, known as "fast radio bursts" were detected. These ...

Since being confirmed as an interstellar object in early June, scientists have been using the world's best telescopes to ...

New information has been made public on the mysterious interstellar 3I/Atlas, which some believe is a comet and others fear ...

Since being confirmed as an interstellar object in early June, scientists have been using the world's best telescopes to ...

Is the viral 3I/Atlas leaked photo real or fake? A clear fact check on its origin, what NASA data show, why basic optics say no, and how social media fueled the debate.

Researchers have documented 55 instances of "mini lightning" over two Martian years by eavesdropping on the whirling wind ...

Scientists have detected what they believe to be lightning on Mars by eavesdropping on the whirling wind recorded by NASA's ...

NASA's Perseverance rover has recorded the first evidence of electrical activity on Mars that a scientist described as "mini ...