A telescope near Tucson has helped scientists produce the largest 3D map of the universe ever made and uncover confounding evidence that could change our understanding of dark energy.

The comet will come closest to Earth on Oct. 20. There's hope that it may become bright enough to glimpse with the naked eye.

To find out how people reach for the stars first you must climb 4,209 feet. You’ll find more bicyclists — and motorcyclists — ...

Since its completion in 2016, FAST (the Five-hundred-meter Aperture Spherical Telescope, known as "China's Tianyan") has captured over 1,000 pulsars within the Milky Way, including the faintest pulsar ...

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