Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

Two planets stand side by side as the evening twilight continues to delight and colorful stars shine in the sky this week.

The Hubble Space Telescope captured the ​​colorful, wispy clouds near the Tarantula Nebula, one of the most luminous and ...

Jupiter and Mars are high overhead, and they’re both bright enough to stand out. Jupiter looks like the second brightest star ...

Clyde Tombaugh didn't set out to discover Pluto when he sent his sketches of the night sky to Lowell Observatory in Flagstaff ...

Saturn’s rings are an arresting sight even through modest telescopes. The planet is made mostly of hydrogen and helium whereas the rings are billions of pieces of mostly bright-white water ice and ...

The aviation museum in Tucson has new planes, some of which you can go in. Here's how long it takes to go through the museum and how to get tickets.

"We described them as 'never growing up' because they have maintained their primordial disk long after the expected time frame for primordial disks to have dissipated." ...

In popular culture, heaven is depicted with pearly gates, fluffy clouds and bright, celestial lights. So what actually is ...

From Cape Canaveral to Mission Control, these awe-inspiring spots should be on every intergalactic aficionado’s must-visit ...

You shouldn't set your expectations too high, but it will give you enough of a taste to see whether you want to invest in ...