Trivia

Hard

The First Ice Volcano In Our Solar System Was Discovered On?

Triton
Pluto
Neptune
Titan
An artist's rendering of an ice geyser on the moon Enceladus.
David Seal/NASA

Answer: Triton

Here on boring old Earth, we’ve got plain old volcanoes that spew molten rock into the air. Elsewhere in the solar system (and presumably elsewhere in the universe), there are volcanoes of a distinctly icy nature.

These ice volcanoes, or more accurately, cryovolcanoes, are found on extremely cold planets and moons. Rather than spewing molten rock, they instead erupt and eject water, ammonia, or methane—known as cryomagma, cryolava, or ice-volcanic melt.

The first cryovolcano was observed on Neptune’s moon Triton by the 1989 flyby of the Voyager 2 space probe. Nearly two decades later in 2005, the Cassini space probe photographed cryovolcanic (geyser) eruptions on Saturn’s moon Enceladus. Since then, indirect evidence of cryovolcanic activity has been found on multiple bodies in our solar system including Europa, Titan, Ganymede, Miranda, Charon, Pluto, and Ceres. Scientists have also speculated that the Kuiper belt object Quaoar may have exhibited cryovolcanism in the past.

Detailed observations of ice volcanoes is difficult because they only appear on astronomical bodies far from Earth, requiring powerful telescopes or expensive space probes for further inquiry.

Trivia

Hard

The Waters Of Which Of These Lengthy Rivers Rarely Reaches The Ocean Anymore?

Trivia

Easy

The Tallest Mountain In The United States Is?

Trivia

Easy

Residential Communities Where People Live With Their Planes And Direct Runway Access Are Called?

Trivia

Easy

Painted Navigational Markers Left On Hiking Trails Are Called?

Trivia

Easy

What Substance Is A Key Component In Both Black and White Photography and Jell-O?

Trivia

Easy

Electronic Resistors Are Commonly Distinguished With What Markings?

Trivia

Hard

Highlighting Missing Children On Milk Cartons Gained Traction After The Abduction Of Two?

Trivia

Hard

Anyone Venturing Outside Town In Svalbard, Norway Is Required To Bring?

Trivia

Easy

The Primary Historical Purpose Of The Windmills Found Throughout The Netherlands Was?

Trivia

Easy

Swingline Introduced a New Product As The Result Of What Movie?