Omega Sol

It came from the deepest reaches of space and landed on the Moon. Constructed of an unidentifiable liquid material, the spherical module spread itself across the lunar surface, forming towers in its wake...

Dr. Cameron Conrad is a physicist and mathematician investigating the alien phenomenon christened the Moon towers. One of the few scientists capable of deciphering the numerical language of the towers' builders, he has become humanity's ambassador for the world's first contact with an extraterrestrial species. But the ominously silent Builders quickly seem to lose interest in communicating with humans. The Moon towers are designed for one purpose only – to bleed hydrogen out of the Sun, turning it into a red giant. With Earth on the brink of destruction, and society collapsing in on itself, Conrad needs to find a way to convince the aliens that humanity is worth saving... if it's not already too late.