The basic physics of a rainbow is pretty simple, really. Sunlight enters the front of a raindrop. It hits the back side of the drop, reflects, and then heads back out the front side again. The ...

NASA shared a photo from Mars that appears to show a rainbow on the red planet. But NASA said it's actually just the result of lens flare. "Rainbows aren't possible here," it added. See more ...

[3] Solar flare effects on D-region ionosphere using VLF measurements during low- and high-solar activity phases of solar cycle 24. Earth, Planets and Space (2018).

NASA shared a photo from Mars that appears to show a rainbow on the red planet. But NASA said it's actually just the result of lens flare. "Rainbows aren't possible here," it added. See more stories ...

NASA released a photo of what looks like a rainbow on Mars - but said it actually just shows a lens flare. "Many have asked: Is that a rainbow on Mars?" the Twitter account of NASA's Perseverance ...