Saturday 30th December 2023
Difficulty: Very easy
(Public domain)
1. What is the name of the first-known interstellar object to have passed through our solar system in 2017? It was around 1 km long and approximately 170 m wide, with a dark red coloration along with a cigar-like appearance.
2. 55 Cancri e is a planet orbiting the star 55 Cancri A, about 41 light years from our Sun. What mineral is it thought to largely consist of?
3. 101955 Bennu is a near-Earth asteroid that passes close to Earth about every six years. How have NASA described Bennu?
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