Spring is the perfect time to pop the question and choose an engagement ring that’ll sparkle as much as she does.

An illustration of Earth with a ring. Kevin M. Gill via Wikimedia Commons under CC BY 2.0 During a tumultuous period for our planet around 466 million years ago, Earth was pelted with meteorites ...

Although many lunar phenomena are one-night-only events, a ring around the moon is much less elusive. Also known as a lunar halo, a bright white ring of light around the moon can appear anytime ...