Science teacher Ryland Grace wakes up on a spaceship light years from home with no recollection of who he is or how he got there. As his memory returns, he begins to uncover his mission: solve the riddle of the mysterious substance causing the sun to die out. He must call on his scientific knowledge and unorthodox ideas to save everything on Earth from extinction… but an unexpected friendship means he may not have to do it alone.

The first manned flight to Mars returns after having been out of communications since it had arrived on Mars. What would it reveal?

One of the five sci-fi's I remember every single detail of from my earliest days as a fan. For the genre, I think it's considerably above average. The moor is nicely atmospheric. There's one of every character in the book: the good guy, the bad guy, the local sheriff, the lovely damsel, her father the old professor, etc. The scene where we're looking for the first time through the window of the ship and the visitor peeks out from the other side is easily as good as the three-fingered-hand-on-the-shoulder in War of the Worlds. Nice "character" to the visitor, for whom, like Karloff's Frankenstein, we end up feeling some empathy .

Starship C57D travels to planet Altair 4 in search of the crew of spaceship "Bellerophon," a scientific expedition that has been missing for 20 years, only to find themselves unwelcome by the expedition's lone survivor and warned of destruction by an invisible force if they don't turn back immediately.

The world is delighted when a spacecraft containing a crew made up of the world's astronauts lands on the moon, but are shocked when the astronauts discover an old British flag and a document declaring that the moon is taken for Queen Victoria proving that the astronauts were not the first men on the moon.

A young farmer assembles a band of diverse mercenaries to defend his peaceful planet from an evil tyrant.

After an asteroid draws an astronaut and his ship to its surface, he is miniaturized by the phantom planet's exotic atmosphere.