Lucas Tappan, a wealthy and eccentric billionaire and founder of Icarus Space Systems, approaches the Santa Fe Archaeological Institute with an outlandish proposal--to finance a careful, scientific excavation of the Roswell Incident site, where a UFO is alleged to have crashed in 1947. A skeptical Nora Kelly, to her great annoyance, is tasked with the job. Nora's excavation immediately uncovers two murder victims buried at the site, faces and hands...

"You can't militarize space. This one rule has led to decades of peaceful development of space programs worldwide. However, increasing resource scarcity and a changing climate on Earth's surface is causing some interested parties to militarize, namely India, the North American Union, and the Sinese Federation. The discovery of a strange artifact by Dr. Alayna Wong precipitates a crisis. What appears to be a hitherto undiscovered comet is soon revealed...

Hubble Middle School's S.M.A.R.T.S. and Edison Middle School's Mad Scientists are in a competition to come up with the best solution to a real-life mystery, and a mysterious UFO which Zoe, Jaden, and Caleb saw hovering over the school seems to offer the perfect opportunity to separate truth from fiction.

"A.J. and the gang at Ella Mentry School are in for a super surprise when a new teacher, Mr. Cooper, take over their third grade class"--

The long awaited sequel to master storyteller Stephen Coonts's Saucer brings back the characters, action, and exhilaration that made the original a smash. After discovering the secrets of a 140,000-year-old spacecraft in Saucer, Rip Cantrell and beautiful test pilot Charley Pine think their days of high-flying extraterrestrial adventure are over. But when Pine takes up flying spaceplanes to the moon for the French lunar base project, she discovers...

June 26, 1947. Headlines across America report that an aviator from Idaho witnessed nine pulsating lights flying over the Cascade Mountains at speeds surpassing any aircraft built by humankind. Days later, a desperate Chicago pool hustler, inspired by the news, hitchhikes west in a fever-dream search for a possible extraterrestrial sign. A chance encounter with Saul Penrod, an Idaho farmer, and his family sets in motion the birth of "The Seekers"--a...

"When Darren Stonkadopolis claims he's had a close encounter of the stinky kind, the other Fart Squad members think he's full of hot air. But then the alien Stink Weeds descend, and the Fart Squad is forced to smell the truth. It'll take some weed wacking, some stealthy stench tactics, and buttfuls of gas so smelly they'd make the sun blush to stop these mutant extraterrestrial vegetables from universal stinkination" --

Joe is recalled from a well-deserved day off after a series of nigh-impossible cyber attacks culminate with the disappearance of the president. To save him, Joe and the Department of Military Sciences must track down the semimythical Majestic Black Book and put a stop to the secret economy of retro-engineering salvaged alien technology.

UFOs: Are Alien Aircraft Overhead? Readers will examine the history of UFOs, Roswell, alien abduction, Area 51 and more before deciding for themselves! Table of contents, fun facts, a glossary, and an index are included. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.