There are 3 books in the Mote Series series. The newest book is Outies which came out in 2011.

1
The Mote in God's Eye

By Larry Niven , Jerry Pournelle ,

Book cover of The Mote in God's Eye
Aliens - Moties - were first contacted in AD3017 in the region of space known as the Coalsack. The eponymous mote in his eye, which has winked out, much to the distress of pious Himmists, just might have been Motie laser light. It might even indicate the position of their…
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2
The Gripping Hand

By Larry Niven , Jerry Pournelle ,

The Gripping Hand
In the sequel to The Mote in God's Eye, twenty-five years after the quarantine of the alien Moties within their own solar system, the walls separating them from the rest of the universe are beginning to crumble. 150,000 first printing. $150,000 ad/promo.

3
Outies

Book cover of Outies
In a return to the CoDominium universe of the Second Empire of Man, Outies pauses at the fringes of human space, on an outworld that never knew fossil fuels. New Utah instead pushed crude solar technologies to the limits of everyday utility. But a planet is a big place -…