Gold in the Sky

"Gold in the Sky" by Alan Edward Nourse is a science fiction novel where brothers Gregory and Tom Hunter find themselves in a whirlwind of danger and conspiracy following their father's mysterious death in the Asteroid Belt; as Greg, a test pilot, is called away on a U.N. mission, Tom copes with hardship on Mars, only to learn of their shared loss; the boys unite to investigate the suspicious circumstances surrounding their father's mining accident, leading them to question the Jupiter Equilateral company and ultimately searching for justice among the stars.