The ObserverBiologyThe microscopic animals can withstand extreme conditions that would kill humans, and may one day help in the development of Covid vaccines. How do they do it? On 11 April 2019, a spacecraft crashed on to the Moon. The Israeli Beresheet probe was supposed to land gently in the Mare Serenitatis, a huge plain of basalt rock formed in a volcanic eruption billions of years ago. It would have been the first privately funded mission to land on the Moon.

OpinionCancer This article is more than 12 years oldThe Big C is not the cancer comedy for meThis article is more than 12 years oldDeborah OrrThis sentimental TV programme breaks none of the taboos surrounding the illness or its treatmentIs carcinoma suddenly everywhere? Or have I just been ultra-sensitive lately, noticing every tiny mention of the illness since I was diagnosed with breast cancer last June? No, it's not that, not just that, anyway.

Photograph: C Squared Studios/Getty Images Photograph: C Squared Studios/Getty ImagesAlex Bellos's Monday puzzleMathematicsCan you solve it? The bat, the ball and the bamboozleYou’ll be hit for six UPDATE: To read the answers click here Here’s a famous puzzle: A bat and a ball cost £1.10. The bat costs £1 more than the ball. How much does the ball cost? The puzzle is well-known because people often get it wrong, even though the arithmetic involved is very simple.

Tennis This article is more than 8 months oldFifteen-year-old Mirra Andreeva topples Beatriz Haddad Maia at Madrid OpenThis article is more than 8 months oldRussian youngster wins 7-6 (6), 6-3 against world No 14Andy Murray loses in first round to Andrea VavassoriAcross the southern barrios of Madrid, the 15-year-old Mirra Andreeva continued to command attention on her debut at the Madrid Open as she followed up her maiden WTA victory against Leylah Fernandez by toppling Beatriz Haddad Maia, the world No 14, 7-6 (6), 6-3 to reach the third round.

MoneyFinancial adviser who killed elderly client jailed for lifeAn independent financial adviser who fleeced an elderly client out of almost £300,000, then murdered her after she demanded her money back, was jailed for life yesterday. Peter Crittenden seduced Joan Beddeson, 71, and persuaded her to hand over the money. When she had second thoughts about their relationship and asked for the money back, he murdered her. In the early hours, he drove from his Worcester home to her bungalow in Macclesfield, Cheshire, and smothered her with a pillow.