Flying vertically up for over 18 km, professor Brian Cox witnesses the mesmerising 'thin blue line' – the atmospheric edge between Earth and Space. | BBC Earth

23K views · 248 reactions | Professor Brian Cox shows us how to work out how powerful the sun is, using an umbrella and a bucket... Wonders of the Solar System (TV series) - now streaming on Stan. | Stan. | Facebook

Join Professor Brian Cox as he seeks to understand the nature of time and its role in creating both the universe and ourselves. Wonders of the Universe, watch tonight at 8pm or online now: www.knowledge.ca/program/wonders-universe | Knowledge Network | Facebook

For the first time ever, witness the events that shaped our destiny. Discover the place where everything begins, and ends 💫 Join Professor Brian Cox in #Universe. Starts March 13 on BBC Earth. | Sky