Zebrowski, George. Stranger Suns
Summary: An alien ship found in Antarctica includes portals to alternate Earths, but those who explore them can never return to their home lines.
Comments: Allohistorical content is almost zero, limited to a few sentences referencing Titanic survivors and the assassination of Ronald Reagan.
Published: Bantam/Spectra 1991 (0553291750BUY), Easton 1991.
Published: Serialized in Amazing Stories, January and March 1991.
Published: Revision of The Star Web, Laser 1975 (0373720157).
Original in: English.
Translation: German by Walter Brumm as Fremdere Sonnen, Heyne 1994 (3453077709).