Whether aliens could detect our modern civilization depends on what signs they’re looking for—and, crucially, their distance ...

Whenever planets are visible in the night sky, they always appear roughly along the same line. This path, known as the ...

Astronomers have identified a quartet of small rocky planets orbiting Barnard's star - one of our closest stellar neighbors - ...

to slingshot a spacecraft outwards can reduce the travel time dramatically Reaching the outer planets with a spacecraft is difficult because these worlds are so far away, billions of miles ...

A stunning planet parade is now visible in the night sky. A planet parade is when several of our solar system's planets are ...

It’s nestled at the perfect distance from the sun to allow ... to hunt for these transit events which give away the location of potential planets. TESS, seen here prior to launch, is NASA ...

That's not just because it's too far away. In 2006, the International Astronomical Union (IAS) reclassified Pluto as a dwarf planet. That decision came several years after discovering the Kuiper ...

The night sky offers us a variety of spectacles throughout the year, but for the remainder of the month, we have front-row seats to see—not one or two—but seven planets at once.

To view the alignment, you should find a place with a clear view of the horizon far away from light pollution, StarWalk says. The planets will be observable for a few hours after it gets dark.

A planet parade is when several of our solar ... However, Neptune and Uranus are simply too far away to spot. Astronomers note that you'll likely need a telescope with at least an 8-inch aperture ...