A new star, likely the brightest supernova in recorded human history, lit up planet Earth's sky in the year 1006 AD. The expanding debris cloud from the stellar explosion, found in the southerly constellation of Lupus, known as the SN 1006 supernova remnant, the distance is about 7,000 light-years, that explosion actually happened 7,000 years before the light reached Earth .
42 Mind-Blowing Photos Of Space From The Hubble Telescope
The strikingly unusual planetary nebula, NGC 6751. Glowing in the constellation Aquila like a giant eye, the nebula is a cloud of gas ejected several thousand years ago from the hot star visible in its center.