Sunday marks the shortest day of the year in the Northern Hemisphere, signaling the start of astronomical winter. In the ...

A Christmas meteor shower will light up the skies very soon. Here's your complete guide to seeing the Ursids in Arizona and when they peak.

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

Mysterious Bright Flashes in the Night Sky Baffle Astronomers Celestial transients shine furiously and briefly. Astronomers ...

Astronomers have found evidence for a possible first-of-its-kind "superkilonova," or a kilonova spurred by a supernova. Such ...

By studying faint distortions in galaxy shapes across a vast region of sky, scientists probed the hidden structure of the universe. In the standard picture of the universe, nearly everything is hidden ...

Astronomers used major telescopes across the world to probe a cosmic explosion 8 billion light-years from the solar system.

Researchers at the University of Hawaii Institute for Astronomy (IfA) are helping reshape how scientists study the Sun.

Radio over fiber transports RF signals via optical fiber, enabling low-loss distribution for wireless networks, radar systems, and radio astronomy applications.

Researchers at the University of Iowa and the University of Chicago have developed a framework that could yield more accurate ...

Flandrau Science Center and Planetarium will celebrate its 50th anniversary on Dec. 13 with free admission and a special exhibit on its history.

When is winter? Weather forecasters in the Northern Hemisphere will tell you Dec. 1 through the end of February, which is ...