Leaked images of 3I/ATLAS suggest the US may have been tracking the interstellar object for years using the secret Cassandra planetary defense system, long before the public knew.

Fresh simulations show there is a chance Uranus and Neptune might actually be rock-rich worlds wrapped in thinner icy layers.

NASA’s latest tracking data show that interstellar comet 3I/ATLAS is not just racing through the solar system, it is accelerating in a way that standard gravitational models struggle to explain. The ...

The interstellar comet 3I/ATLAS has started to brighten and dim in a remarkably steady rhythm, repeating every 16.16 hours as ...

With one of NASA's most data-rich Martian orbiters of the 21st century in distress, now is as good a time as ever to remember ...

The arrival of interstellar comet 3I/ATLAS in the inner Solar System in late 2025 sparked a burst of scientific observation-and a parallel surge of online claims that U.S. authorities had quietly ...

Researchers at the University of Hawaiʻi Institute for Astronomy (IfA) are helping reshape how scientists study the sun. The ...

NASA has selected a heliophysics mission to move into the next phase of development amid broader concerns about the state of the field.

Whatever you call it, it is a staple of any nativity scene, just as much as the wise men who followed it, usually represented ...

A predictive space weather model developed by APL and partners that is designed to simulate how solar storms affect Earth is ...