Is there really gold on asteroid Eros?

The concentrations of noble and rare earth metals present in meteorites suggest that the overall concentration of these resources in asteroid bodies is not really very high, no more than 1ppm and in most cases less - comparable to some of the poorer exploitable ores that are found on Earth. read more

It's is probably about the same concentration of gold as there is in the soil of your front garden. Or in the rocks of Mount Everest. We don't actually have a chemical analysis of Eros anyway, so the tweet is only guesswork. read more

433 Eros, the asteroid NASA investigated contains more gold than ever extracted on Earth. The total amount of gold on Earth is calculated at $3,000,000,000,000 and this is excluding all the stuff held in private collections and any fabled Aztec lost city of gold. read more

Eros is an S-class (stony) asteroid, with very low metal content. There are far richer rocks out there - some are virtually pure nickel-iron - and, provided you're not in some sort of hurry, they're not that much harder to get to than Eros. read more