We're looking out well beyond the reach of Earth's gravity in the Geo Quiz this time.
Instead of the usual search for the name of a city or an ocean, we're looking for a "bubble of charged particles."
That's how scientists describe an area of space we'd like you to name.
It basically surrounds our solar system, though scientists haven't yet mapped out its precise boundaries.
If you're wondering why all this space talk — well, this is where the Voyager spacecraft are now.
For 35 years NASA's two Voyager space probes have been speeding out toward the outer bounds of our solar system.
They are currently "dancing on the edge of the solar system," according to NASA, galloping along at about 10 miles per second, and headed into the heliosphere, the answer to our Geo Quiz.
On board both spacecraft are time capsules.
Just in case anyone comes into contact with the Voyagers, it's hoped they'll be ecstatic to learn of life elsewhere in the universe.
The following music was included on the golden Voyager record:
Bach, Brandenburg Concerto No. 2 in F. First Movement, Munich Bach Orchestra, Karl Richter, conductor. 4:40
Java, court gamelan, "Kinds of Flowers," recorded by Robert Brown. 4:43
Senegal, percussion, recorded by Charles Duvelle. 2:08
Zaire, Pygmy girls' initiation song, recorded by Colin Turnbull. 0:56
Australia, Aborigine songs, "Morning Star" and "Devil Bird," recorded by Sandra LeBrun Holmes. 1:26
Mexico, "El Cascabel," performed by Lorenzo Barcelata and the Mariachi México. 3:14
"Johnny B. Goode," written and performed by Chuck Berry. 2:38
New Guinea, men's house song, recorded by Robert MacLennan. 1:20
Japan, shakuhachi, "Tsuru No Sugomori" ("Crane's Nest,") performed by Goro Yamaguchi. 4:51
Bach, "Gavotte en rondeaux" from the Partita No. 3 in E major for Violin, performed by Arthur Grumiaux. 2:55
Mozart, The Magic Flute, Queen of the Night aria, no. 14. Edda Moser, soprano. Bavarian State Opera, Munich, Wolfgang Sawallisch, conductor. 2:55
Georgian S.S.R., chorus, "Tchakrulo," collected by Radio Moscow. 2:18
Peru, panpipes and drum, collected by Casa de la Cultura, Lima. 0:52
"Melancholy Blues," performed by Louis Armstrong and his Hot Seven. 3:05
Azerbaijan S.S.R., bagpipes, recorded by Radio Moscow. 2:30
Stravinsky, Rite of Spring, Sacrificial Dance, Columbia Symphony Orchestra, Igor Stravinsky, conductor. 4:35
Bach, The Well-Tempered Clavier, Book 2, Prelude and Fugue in C, No.1. Glenn Gould, piano. 4:48
Beethoven, Fifth Symphony, First Movement, the Philharmonia Orchestra, Otto Klemperer, conductor. 7:20
Bulgaria, "Izlel je Delyo Hagdutin," sung by Valya Balkanska. 4:59
Navajo Indians, Night Chant, recorded by Willard Rhodes. 0:57<
Holborne, Paueans, Galliards, Almains and Other Short Aeirs, "The Fairie Round," performed by David Munrow and the Early Music Consort of London. 1:17
Solomon Islands, panpipes, collected by the Solomon Islands Broadcasting Service. 1:12
Peru, wedding song, recorded by John Cohen. 0:38
China, ch'in, "Flowing Streams," performed by Kuan P'ing-hu. 7:37
India, raga, "Jaat Kahan Ho," sung by Surshri Kesar Bai Kerkar. 3:30
"Dark Was the Night," written and performed by Blind Willie Johnson. 3:15
Beethoven, String Quartet No. 13 in B flat, Opus 130, Cavatina, performed by Budapest String Quartet. 6:37