From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

In 2026, there will be journeys to the moon and Mars, new visions of the cosmos and a solar eclipse that might be worth ...

Scientists have been cataloging comet 3I/ATLAS’s journey through the Solar System since July, tracking major milestones as ...

NASA is facing mounting criticism over its handling of 3I/ATLAS, a newly detected and exceptionally rare visitor that ...

NASA’s Europa Clipper spacecraft has recorded important new observations of the interstellar comet 3I/ATLAS using its Southwest Research Institute-led Ultraviolet Spectrograph (UVS). In July, 3I/ATLAS ...

A mysterious interstellar comet known as 3I/ATLAS is about to make its closest approach to Earth in December 2025. Here's ...

Astronomers continue to track the mysterious interstellar visitor Comet 3I/ATLAS as it speeds through the solar system, using ...

An experimental NASA solar sail can be seen in the night sky as it orbits the Earth. NASA's Advanced Composite Solar Sail System (ACS3) launched in April 2024 atop a Rocket Lab Electron rocket. The ...

Scientists have long studied the sun, our solar system’s life-giving star, trying to understand its behavior, solar flares, ...

On April 23, NASA launched a solar sail protype to orbit around our planet — a piece of technology that could very well revolutionize the way we think about spacecraft propulsion. Then, on Aug. 29, ...

For most, getting into a car is a task that can be done without assistance. Yet for those whose destination is the moon, the ...

The Artemis II mission, which could launch as early as February, is expected to send four astronauts on a trip to the moon, ...