Shattered glass. Howling car alarms. Buildings evacuated. On 15 February 2013, the city of Chelyabinsk in the Urals region of Russia felt the full force of a shockwave caused by an unexpected fireball exploding some 15-20 km above it. As the lump of space rock burned up in the sky above the city, windows were blown out and local buildings shook. Hundreds were left injured.
The Ottoman mansion of Hassan Bey in the seismically active medieval centre of Rhodes, Greece, does not worry civil engineers – even though the building is faulty because its floor isn’t very well connected to the wall.
‘It’s in your genes!’ How often have you been reminded by friends or relatives that you look the way you do because of the genetic code stored in your DNA? But next time you hear this expression used, you might stop to wonder what else could be stored in those genes.
Newly domesticated horses may have increased the spread of disease.
Sir Peter Ratcliffe on why hypoxia matters.
Dr Michaël Gillon on what's next for exoplanet science.