QUESTIONS

Q: If intelligent life on a planet in Alpha Centauri’s solar system viewed Earth through a telescope, what part of our history would they be observing? Anthony Thompson, Leeds.

Q: What is the explanation behind Co. Louth’s ‘Magic Hill’, where a car can roll uphill with the engine turned off? M. Hamilton, Wexford.

Q: I read a novel 40 years ago in which all the world’s plastic disintegrates, with disastrous consequences. Who wrote it? Jennifer Waters, Weston-super-Mare, Somerset.