Sunday, September 27, 2015

How dense is a Neutron Star?

  •  A neutron star is about 20 km in diameter and has the mass of about 1.4 times that of our Sun. 
  • One teaspoonful would weigh a billion tons (or more)
  •  Some neutron stars have jets of materials streaming out of them at nearly the speed of light. As these beams pan past Earth, they flash like the bulb of a lighthouse. This pulsing appearance led them to be called pulsars.

Friday, September 25, 2015

Lakes of Titan

  •  Titan harbours the only other verified bodies of liquid on the surface of a planet/moon
  • Lakes are composed of liquid methane 
  • Reaction between UV light and methane could produce organic molecules i.e. amino acids
  • Should we sit back and let it be?

Saturday, September 19, 2015

Mapping the Milky Way Inside Out

  • Using WISE (NASA's Wide-field Infrared Survey Explorer), the research team has discovered more than 400 dust-shrouded nurseries of stars, which trace the shape of our galaxy's spiral arms
  • The results support the four-arm model of our galaxy's spiral structure.
  •  The spacecraft was put into hibernation mode in 2011, after it scanned the entire sky twice
  • In September 2013, WISE was reactivated

Monday, September 7, 2015

Downfall of the Modern World - Solar Storms

  •  Solar storms pose more danger than ever recorded in human history
  • Centuries of technological advanced could be wiped in the worst case scenario
  • The Sun has fired a warning shot before
  • Civilization must take steps to reduce risks