Space

The European Space Agency's gamma ray observatory Integral has caught the centre of our galaxy in a moment of rare quiet. A handful of the most energetic high-energy sources surrounding the black hole at the centre of the Galaxy had all faded into a temporary silence when Integral looked.

  Integral Galactic Centre

 

This unusual event is allowing astronomers to probe for even fainter objects and may give them a glimpse of matter disappearing into the massive black hole at the centre of our galaxy. The Galactic centre is one of the most dynamic places in our Galaxy.

When kids head back to school this fall, they might have some brand new planets to memorize.  

The International Astronomical Union, currently meeting in Prague, is expected to vote on the definition of a planet. The organization, which has named planets and moons since it was founded in 1919, is debating a plan to establish that our solar system has 12 planets.