Seven-planet great alignments are, of course, the rarest of all. These alignments aren't the neat planetary queues you see in ...

As shocking as it sounds today, prior to the 1990s, scientists couldn't be certain that stars beyond the sun also had planets ...

A planetary alignment, or a "planet parade" according to the internet, will grace our night sky just after dusk, according to ...

Usually only a few planets are visible at the same time. David Young, observatory director with the Astronomical Society of Kansas City, said it is “kind of cool” to see all of the planets ...

(Photo by: Universal History Archive/ Universal Images Group via Getty Images) “Planetary scientists often wish there was something in between those two planets. It seems like wasted real estate ...

The newly discovered planets stand out for their relatively cool temperatures ... The project was a real team effort and involved researchers at varying stages of their careers; it's wonderful ...

For those with telescopes, Uranus and Neptune will also be visible. So why is this so cool? “Planets always appear along a line on the sky, so the ‘alignment’ isn’t special,” NASA’s ...

I hope you can get outside and see the “planetary parade” for yourself as it is pretty cool to see four of the five naked eye planets from horizon to horizon. Mercury, the fifth naked eye ...