The truth is out there. Astronomers say they’re stunned by an unidentified object flashing strange signals from deep space.

Here’s how it works. The Mars Pathfinder mission marked a groundbreaking moment in NASA's exploration of Mars, paving the way for future rover missions. Launched on Dec. 4, 1996, and landing on ...

In doing so, the agency set up its first on-the-go, vehicular science lab on another world, able to visit more than one place in the course of its mission. As NASA’s Pathfinder spacecraft soared ...

The object give off pulses of radio waves and X-rays, and repeats the cycle of X-rays and radio waves every 44 minutes.

NASA recently evaluated initial flight data and imagery from Pathfinder Technology Demonstrator-4 (PTD-4), confirming proper checkout of the spacecraft's systems including its on-board electronics ...

Flight controllers have lost contact with a small pathfinder spacecraft launched last week to test an unusual lunar orbit planned for NASA's Artemis moon program, officials said Tuesday.

LISA Pathfinder, a mission led by the European Space Agency (ESA) with contributions from NASA, has successfully tested a key technology needed to build a space-based observatory for detecting ...