Q 01/05
A) Between Saturn and Uranus
B) In the asteroid belt
C) In the Oort cloud
D) Beyond Neptune, in the Kuiper belt
Answer · why
It is the third-largest known trans-Neptunian object after Eris and Pluto, about the size of Uranus's moon Titania.
Q 02/05
A) Hawaii
B) Tahiti
C) Tonga
D) Samoa
Answer · why
The Caltech team chose the names to honour Mauna Kea, where the moons were found.
Q 03/05
A) Volcanoes and lava
B) The sea and its storms
C) War and conquest
D) Childbirth and fertility
Answer · why
Her many children were said to spring from different parts of her body, an apt image for a body that shed a family of fragments.
Q 04/05
A) A striking deep blue colour
B) An elongated, egg-like ellipsoid shape
C) A thick nitrogen atmosphere
D) A partly molten rocky surface
Answer · why
Its long axis is roughly twice its short one, thanks to a spin of under four hours.
Q 05/05
A) About 6.4 days
B) About 10 hours
C) About 24 hours
D) About 3.9 hours
Answer · why
Faster than any other known body in equilibrium; a little quicker and it would split into a dumbbell.
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