What is it about this terrestrial world’s atmosphere that gives it its unusual colour?
What do the letters of stellar classification stand for?
O, B, A, F and so on… What do they all mean?
Supernova of 386 CE was too faint to have been witnessed
A new look at the debris from an exploded star in our galaxy has astronomers re-examining when it actually happened
Small blue galaxy could shed light on the Big Bang
The ‘little lion’ galaxy contains the lowest level of heavy elements ever detected in a gravitationally bound system of stars
New Horizons Update: Water ice and blue skies found on Pluto
Recent colour images reveal more about the dwarf planet