Related Clues:

• Image on eco-friendly products
• Down-to-___ (unpretentious)
• View for an astronaut
• Soil and dirt
• Third rock out
• "The Good ___" (Buck book)
• Planet past Venus
• The so-called 'blue marble'
• Electrical connection
• It means the world to us
• Planet nearest Mars, usually
• "Planet of the Apes" planet
• Mars' neighbor
• One of eight, now
• Alchemist's element