Michael Mattiazzo captured this image of Comet Tsuchinshan-ATLAS during ... shining brightly in the eastern sky at dusk. It turns full on Oct. 17, rising as the sun sets, but on each successive ...

The patch of sky captured in the image is just 6.44 by 6.44 arcminutes, and yet it contains over a thousand galaxy groups. To put this into perspective, the full Moon appears roughly 30 arcminutes ...

Another breathtaking image, which Briceño captured the same night, presents the showstopper against the backdrop of the Chilean mountains near the sea, showcasing a clear sky at dusk. Shreejaya ...

Because the rover took the image in the dark with an almost one-minute exposure time, the scene appears hazy. Many of the white dots in the sky likely aren't distant stars but digital noise.

A chance alignment in this direction of the sky provides a beautiful juxtaposition ... STScI The James Webb Space Telescope has captured another stunning image of space, this time showing the ...

The most powerful solar telescope in the world has recorded a major milestone atop an active volcano in Hawaii, capturing a detailed image of a cluster of sunspots with the telescope's new Visible ...

On some Martian nights, a subtle, green glow hangs low in the sky, wreathing the horizon in every direction. Compared to many Earthly aurora photos, the new image from Mars is fuzzy. There are a ...

A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from, including world-class observatories and six Dark Sky parks.