Learn more about the latest Phoenix area weather forecast and conditions with Most Accurate Forecast from ABC15.

Our understanding of the true nature of the cosmos relies on measurements of its expansion, but cosmologists have been ...

Interstellar comet 3I/ATLAS makes its final pass by Earth this week. Its speed of 137,000 mph and unique chemical makeup have ...

Omar Yaghi thinks crystals with gaps that capture moisture could bring technology from “Dune” to the arid parts of Earth.

Unlike YR4, finding earlier observations of 3I/ATLAS to model where it might have come from was easier said than done. During ...

One fire appears to have been caused by a spark from old power lines, the other allegedly started by an Uber driver with a ...

As decades of behavioral research has shown, people are “loss-averse” — which means they react more strongly to losses than ...

Every 22 seconds, briefly in the low Earth orbit, there are two satellites moving close, less than a kilometer apart. For example, for the Starlink satellite system, there is a close approach every 11 ...

Europe's new Ariane 6 rocket successfully placed two satellites into orbit to join the EU's rival to the GPS navigation ...

Interstellar comet 3I/ATLAS will safely pass Earth on December 19, offering scientists a rare chance to study material from ...