The 43-year-old - known as ‘The Molar Explorer’ - has become one of only a handful of women to cross Antarctica solo. She said: "It's been really brutal. Originally, I wanted to do it in 50 days.

Two huge masses deep within Earth may have remained stable for billions of years, surviving the powerful churn of the interior, according to an analysis of seismic waves ringing throughout the planet.

Mass spectrometry is an analytical technique that uses an instrument called a mass spectrometer to measure the mass-to-charge ratios of molecular ions. Molecules fragment within the mass ...