Infinity Blast and the Space Weapon of Doom (Infinity Blast, Book #1)

Self-proclaimed space nerds Infinity, his best friend Gabriel, and his sister Twilight are on the run, spurred by the arrest of their astrophysicist parents who have decoded a mysterious message from the long dormant Opportunity rover on Mars. In need of help, the three kids track down legendary astronaut Gerald EFoxI Fuller who has retired to a life of surfing and yelling at anyone who interrupts his surfing. Heroism does not come easily to Infinity, Gabe, or Twilight. They feel big feelings but find a way to be brave, fight through it all, and triumph in the end.