However, you don't have to look off-world to find purple bacteria ... be primed to thrive on planets that circle cooler red dwarf stars – the most common type in our galaxy.

The most abundant stars in our Milky Way galaxy are small ... It's even possible that such purple bacteria once flourished on an early Earth. After all, our planet has only had oxygen for about ...

Here’s how it works. To find life on far-off planets, astronomers may need to look for pinpoints of purple. New research unravels the light signals that are likely to come from worlds where ...

The display of purple lights on Mars stunned ... it results in auroras that engulf the entire planet.⁣" (Also Read: NASA sheds light on the Whirlpool Galaxy through a series of unseen images.

But not knowing was agony. This story has a happy ending, though: Now we do know—the galaxy is filled with planets. Even better, this story also comes with a twist worthy of an eyebrow-raise ...

“We estimate that our galaxy is home to 20 times more rogue planets than stars—trillions of worlds wandering alone,” said a co-author of both papers, senior research scientist David Bennett ...

Astronomers have found that free-floating planets far outnumber those bound to a host star. By Katrina Miller Free-floating planets — dark, isolated orbs roaming the universe unfettered by any ...