Neptune was the missing piece of the puzzle when it came to detecting auroras on the giant planets of our solar system.

Need a break? Play the USA TODAY Daily Crossword Puzzle. Saturn, Mercury, Neptune, Venus, Uranus, Jupiter and Mars — the other seven planets in the solar system — will align in the sky just ...

On Feb. 28, a stellar alignment of planets will illuminate the night sky for the last time in a decade Space Frontiers/Hulton Archive/Getty Calling all stargazers and astronomy enthusiasts ...

Play the USA TODAY Daily Crossword Puzzle. Here's what to know about the upcoming skyward spectacle. According to the Science Alert website, "It's not uncommon for a few planets to be on the same ...

This is expected to be the last time all seven planets will align in such a way until 2040, so keen stargazers are advised to set a reminder to catch the cosmic event. We’ve spoken to expert ...

Seven planets are aligning in the night sky this week, creating a brief chance to see a "planetary parade." Worldwide, the best day to see the alignment is today, Feb. 28. Mercury, Venus ...