All books · Day 2
Day 2: Space, Tuesday 10 November
Day 2 · Space
One of us is fibbing.
Each of us tells you one thing about space. Four are true. Can you tell who's fibbing?
Where the truth comes from
The truth: It is about 21 km high, well over twice as tall as Everest.
The four true ones
1 · Fnuss True
Venus spins in the opposite direction to most planets.
Source: NASA Science – Venus: Facts
2 · Knut True
Saturn's average density is lower than water's.
Source: NASA Science – Saturn: Facts
3 · Pim True
Mars's moon Phobos circles Mars faster than Mars spins.
Source: NASA Science – Hubble Sees Martian Moon Orbiting the Red Planet
4 · Borka True
Sunlight takes about 8 minutes to reach Earth.
Source: UCAR Center for Science Education – The Sun's Energy
Checked blind by a second AI that wasn't told which one was false. The fibber was drawn at random by code, not by the AI. Spot a mistake? We caught the AI.