Andromeda Series by Michael Crichton, Daniel H. Wilson

The United States government is given a warning by the pre-eminent biophysicists in the country: current sterilization procedures applied to returning space probes may be inadequate to guarantee uncontaminated re-entry to the atmosphere. Two years later, seventeen satellites are sent into the outer fringes of space to collect organisms and dust for study. One of them falls to earth, landing in a desolate area of Arizona... moreThe United States government is given a warning by the pre-eminent biophysicists in the country: current sterilization procedures applied to returning space probes may be inadequate to guarantee uncontaminated re-entry to the atmosphere. Two years later, seventeen satellites are sent into the outer fringes of space to collect organisms and dust for study. One of them falls to earth, landing in a desolate area of Arizona. Twelve miles from the landing site, in the town of Piedmont, a shocking discovery is made: the streets are littered with the dead bodies of the town's inhabitants, as if they dropped dead in their tracks.--back cover less

In 1967, an extraterrestrial microbe came crashing down to Earth and nearly ended the human race. Accidental exposure to the particle—designated The Andromeda Strain—killed every resident of the town of Piedmont, Arizona, save for an elderly man and an infant boy. Over the next five days, a team of top scientists assigned to Project Wildfire worked valiantly to save the world from an epidemic of unimaginable proportions. In the moments before a catastrophic nuclear detonation, they succeeded... moreIn 1967, an extraterrestrial microbe came crashing down to Earth and nearly ended the human race. Accidental exposure to the particle—designated The Andromeda Strain—killed every resident of the town of Piedmont, Arizona, save for an elderly man and an infant boy. Over the next five days, a team of top scientists assigned to Project Wildfire worked valiantly to save the world from an epidemic of unimaginable proportions. In the moments before a catastrophic nuclear detonation, they succeeded.In the ensuing decades, research on the microparticle continued. And the world thought it was safe…Deep inside Fairchild Air Force Base, Project Eternal Vigilance has continued to watch and wait for the Andromeda Strain to reappear. On the verge of being shut down, the project has registered no activity—until now. A Brazilian terrain-mapping drone has detected a bizarre anomaly of otherworldly matter in the middle of the jungle, and, worse yet, the tell-tale chemical signature of the deadly microparticle.Project Wildfire is activated, and a diverse team of experts hailing from all over the world is dispatched to investigate the potentially apocalyptic threat. If the Wildfire team can’t reach the quarantine zone, enter the anomaly, and figure out how to stop it, this new Andromeda Evolution will annihilate all life as we know it. less