Buster tries to convince Arthur, the Brain, and his other friends that he not only saw a UFO but also a comet heading for the earth.

"Stink is camped out in the backyard with his sister Judy and he can't wait to lay eyes on P/2015 OZ4, also known as the Sherman-Holm Comet. But then news of an asteroid hitting Russia reaches Stink, and suddenly he's feeling squeamish (and squash-ish) about close encounters of the outer-space kind. Will donning an aluminum-foil cape and building a bunker in the basement help keep him safe? Can this fearless Asteroid Boy save Earth from disaster?"--...

"When dark comet UD3 was spotted near Jupiter's orbit, its existence was largely ignored. But to individuals who knew better -- scientists like Benjamin Schwartz, manager of NASA's Center for Near-Earth Object Studies -- the threat this eight-kilometer comet posed to the survival of the human race was unthinkable. The 150-million-year reign of the dinosaurs ended when an asteroid impact generated more than a billion times the energy of an atomic bomb....

"The passage of Halley's Comet in 1759 is catastrophic. The comet appears to strike the Earth, sundering the New World from the Old. A chain of mountains rises in the Mid-Atlantic. No ship from the Old World arrives in America. No ship from the New World can find a passage to the Old-and most who try simply disappear. The comet has also unleashed magic forces, which soon spread everywhere. Slaves begin using powers derived from African witchcraft,...

"When Haylee's old BFF returns to town, she and Comet learn to welcome a new friend to their twosome"--

"Haylee and Comet share one simple wish: a friend. And as with all great best-friendships, the universe brings them together in the right place at the right time. With each adventure, Haylee and Comet learn about what it takes to grow a strong and long-lasting friendship: accepting their differences, discovering the things they share, communicating with honesty, and being open to forgiveness. And just maybe, there'll be some surprises along the way."--Page...

Comet the cat uses up eight of his nine lives trying to find the right place to live on Nantucket Island.

An injured Comet the reindeer expects to sit out Christmas Eve, but ends up delivering the presents that Santa has accidentally left behind.

It began with a comet. At first, people gazed in wonder at the radiant tear in the sky. A year later, the celestial marvel became a planetary crisis when Earth spun through the comet's debris field and the sky rained fire. The town of Northfall, Minnesota will never be the same. Meteors cratered hardwood forests and annihilated homes, and among the wreckage a new metal was discovered. This "omnimetal" has properties that make it world-changing as...