Galaxies have an overall internal motion called disk velocity. It’s how gas, dust, and stars move around the galactic center.

The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was a ...

The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was a comet from another star system. It’s officially the third known ...

The shattered star at the center was once a white dwarf, a stellar ember no larger than Earth, yet almost as heavy as the Sun ...

"The best time to see the Milky Way in (Massachusetts) is from March to September," according to the Capture the Atlas ...

Tall oak and elm trees create perfect shady spots for afternoon picnics. The swimming pool here is a lifesaver during those scorching Texas summer days when temperatures climb into triple digits.

Stargazers may catch a cosmic light show this Fourth of July weekend when the Milky Way appears in the night sky across the ...

Stargazers may catch a cosmic light show this Fourth of July weekend over California when the Milky Way appears in the night ...

Discover 10 magical U.S. spots where Wi-Fi fades and nature shines. Unplug this summer and reconnect with what really matters ...

The only evening planet for July is Mars, faint red in the west at dusk, and getting lost in the Sun’s glare by August. High ...

Alternative to fireworks? Stargazers could instead catch a cosmic light show this Fourth of July weekend when the Milky Way ...

A new composite image of the Andromeda Galaxy is offering an unprecedented view of our closest spiral galactic neighbor. Composed by NASA and international space partners, the image combines data from ...