The Lowell Observatory in Flagstaff celebrated the 92nd anniversary of astronomer Clyde Tombaugh’s discovery of Pluto, which now is designated a dwarf planet.
The NEID spectrometer is trying to detect more planets outside our solar system. It uses the gravitational influence a planet has on the star it revolves...
UArizona astronomers search to answer how galaxies formed millions of years ago after discovering a distant quasar, powered by a black hole.
A recent study at the University of Arizona helped researchers understand how “tidal heating” among Jupiter’s many moons is raising their temperatures.
Comet NEOWISE will be the closest to the Earth on Thursday. It was discovered in late March here in Arizona, and it’s been visible in the night sky since early...
The 16-by-16-foot observatory is Gilbert's own gateway to the stars.
Fountain Hills is deemed one of the world's 18 dark sky communities by the International Dark Sky Association for preserving their nights skies.
University of Arizona astronomy professor David Sand joined other scientists to discuss evidence of a confirmed kilanova, the collision of neutron stars.