"He is just about as dependent on me than I am on him, and we really are just the perfect pair," Ally Porter told Newsweek.

Just when he thought he had found stability, he was hit with the unimaginable. His beloved wife, Rachel, was diagnosed with mucinous ovarian cancer, a rare and aggressive form of the disease.

The Perseverance rover has found some intriguing samples on the red planet. Here's what they might reveal about the origins ...