query: Sci-fi novel or series - Explorers from Earth discover a "door" capable of reaching distant stars
positive_passages.docid: 18199
positive_passages.text: Looking for sci-fi novel I read about humanity finding alien station on orbit of Earth
negative_passages.docid: 100531
negative_passages.text: Novel about a teleportation device and a con artist alien
negative_passages.docid: 31439
negative_passages.text: Book series my dad told me about. It involves space travel, clones, and an indigenous people with kangaroo tails
negative_passages.docid: 20264
negative_passages.text: SciFi book where scientists learn to peek through time (possibly controlled miniature wormhole?). Computer screens were carried like a handkerchief
negative_passages.docid: 94948
negative_passages.text: Book about time portals inside an asteroid in Earth orbit
negative_passages.docid: 14915
negative_passages.text: Story about lost colonized planet sent into orbit around "free" star
negative_passages.docid: 81413
negative_passages.text: A book about explorers stranded on a planet with two computers
negative_passages.docid: 83882
negative_passages.text: what sci-fi story features an experimental FTL drive which triggers destination (and origin) sun to go nova?
negative_passages.docid: 16900
negative_passages.text: A short story about finding an inhabitable planet and meeting aliens
negative_passages.docid: 55796
negative_passages.text: Story about space explorers who communicate but then decide they must destroy each other
negative_passages.docid: 135913
negative_passages.text: Identifying a "finding Earth" series of SciFi novels
negative_passages.docid: 157823
negative_passages.text: Sci-fi novel with a house used by aliens as a station when space travelling, protected by a force field
negative_passages.docid: 81680
negative_passages.text: Story featuring smart people sent on a space mission to nowhere
negative_passages.docid: 85251
negative_passages.text: Tracking down an old sci-fi book
negative_passages.docid: 22442
negative_passages.text: In-universe explanation for single line of planetary entry/departure in Star Wars
negative_passages.docid: 3968
negative_passages.text: Duo of alien xenologists study couple of Terran explorers, later save them
negative_passages.docid: 87095
negative_passages.text: Sci-fi novel involving living forever through teleporter copies