Here are some interessting facts learned in the Delphic Expanse.

Facts of Enterprise and Crew

*The Hull of Enterprise is made of Duranium.

*T'pol has no siblings.

*Commander Tucker's sister was killed in the attack on Earth along with the seven million others.

*Archer was born in New York.

Facts of The Xindi and their Technology

*There was a sixth xindi species, called the avians.  For more details on the avians, read the 'xindi wars' section in 'Species'.

*There were times when the sky was full of avians before they went extinct.

*The Xindi weapons use slug-like beings as batteries.  The beings die when exposed to some sort of radiation.  But reproduce rapidly while exposed to another.

*Xindi insectoids are genderless

*Xindi Insectoids live to be twelve years old at most.

*Xindi reptillians are quipped with a device that kills them automatically when they are hurt, or if captured, so they don't release any information.

Facts of The Spheres

*The alien spheres are thousands of years old.

*The spheres are 19 kilomiters across

*The openings in the Spheres are made of Polyduranium.

*The anomolies are formed by the spheres.