Approx $7,000 US Dollars (2013)
Supernova grossed $14,218,868 worldwide.
Supernova grossed $14,218,868 in the domestic market.
A supernova can produce as much energy in a few seconds as our sun will in its entire lifetime.
Either a black hole, or a neutron star. That depends on how much mass is left after the supernova explosion.
There aren't really any comparisons to be made to a supernova. Let's try one; a supernova is as much brighter than the Sun is as the Sun is to a flashlight. A supernova will release as much energy in an hour as a regular star does in its entire 10-billion year life.
Much bigger. Earth is a relatively small planet, much smaller than even a dwarf star. A supernova is a very large star exploding.
A supernova is much larger and brighter than a regular, stable star like our sun. During a supernova event, the star can briefly outshine an entire galaxy before fading away. The process of a supernova represents the violent death of a massive star.
Supernova
A supernova can be massive but some aren't. Every supernova is a dieing star. Supernovae are exploding stars. They represent the very final stages of evolution for some stars. Supernovae, as celestial events, are huge releases of tremendous energy, as the star ceases to exist, with about 1020 times as much energy produced in the supernova explosion as our Sun releases every second.
The Vela Supernova is the remnant of a supernova explosion that occurred in the Vela constellation about 11,000 to 12,300 years ago. It is located about 800 light-years away from Earth and is one of the closest known supernova remnants to us.
"after a supernova" is the adverb phrase in the sentence.
A supernova is an exploding star. The Earth would be instantly incinerated, of course. There is approximately zero chance this will ever happen, though. If there was a supernova near Earth ... it would depend on how near. Betelgeuse is a good candidate for a supernova "soon" (within the next million years or so). Scientists who have modeled supernova explosions don't expect it will have much of an impact. If a star nearer than Betelgeuse were to go supernova, then it might be more serious.