The Milky Way is one of the biggest in the observable universe: Even if you traveled at the speed of light, it would take 100,000 years to go from one end of our home galaxy to the other.

The clearest and most precise images yet of the universe’s infancy from the Atacama Cosmology Telescope show the first steps ...

Our solar system lives on a minor arm of the Milky way called the Orion Spur. The Orion Spur branches off from the Sagittarius Arm, one of the galaxy's two major spiral arms. Earth's circumference ...

It's almost 9000 light-years long and is within the Milky Way's Orion arm. The environment in the RW and the Orion complex is more dense, and when the Solar System passed through it, the greater ...

Explore Earth and its relationships with a plethora of planets, stars and galaxies in its cosmic family, Laniakea, the ...

located between the two long spiral arms (Cygnus and Perseus arms); this is reminiscent of the small ‘Local Orion arm’ (4 × 2 kpc) found earlier between the Perseus and Sagittarius arms and of the old ...

Cherry Springs, isolated atop its mountain and surrounded by the 265,000-acre Susquehannock State Forest, remained a haven of darkness. In 2000, the park was designated as Pennsylvania’s first Dark ...