Newly measured distance to stellar debris in the northern sky links it more firmly to an explosion observers saw in 1181.
A faint cometary globule nebula 1,300 light-years from Earth has been revealed in glorious detail through the Very Large Telescope.
If the two black holes meet, they could release as much energy as 100 million supernova explosions as they shatter their galaxy, a new study finds.
For the first time, a distant, pulsing neutron star was there for astronomers to study -- until it disappeared. Crave's Eric Mack explains the extreme forces hiding it from view.
Timey-wimey, wibbly-wobbly: scientists reckon satellites and dead stars could hold the key to the mystery of dark matter.
The discovery of a new unusually bright dead star leads astronomers to question assumptions about a type of cosmic radiation -- and pulsars themselves.
All other new iPhones will pale in comparison to the Falcon luxury iPhone 6, a gold-plated beast with a massive rock attached to the back.
Astronomers discover what could be a supernova survivor, a white dwarf star that may have defied a fiery death.
After more than four centuries, latest data reveals that original supernova blast was more powerful than thought and took place farther away in space.
After more than four centuries, new clues emerge pointing to the origins of Kepler's 1604 supernova.