The Zero Planet. The Zero Planet J wolf and J Panther

THE ZERO PLANETEarth is dying. Temperatures have reached terrifying levels, entire regions have become uninhabitable, and humanity is desperately trying to rebuild a civilization on a planet that may no longer want them. Jenna Panther, a brilliant young expert in advanced technology, has spent years searching for something her father told her about when she was a child:A secret spacecraft hidden somewhere in Canada.
A ship designed to leave Earth. When Jenna finally finds it, she discovers that her father's warning was true. But she also discovers something far greater than she ever imagined. The Ark was never built simply to escape. It was built to begin again. Along the way, Jenna encounters the mysterious Major Shepherd, the legendary Jay Wolf, descendants of the Ancient Widows, forgotten military secrets, advanced nanotechnology, and evidence of an earlier attempt to colonize another world.
But that world is dead. And humanity has nowhere left to go.