Question

A5. Do as directed: (2) i) Supernovas are among the most energetic events in the universe and result in the complete disruption of stars at the end of their lives. (1) (Rewrite as a Complex Sentence) (1 Point) Supernovas, which are among the most energetic events in the universe, result in the complete disruption of stars at the end of their lives. Being the most energetic events in the universe Supernovas result in the complete disruption of stars at the end of their lives. Supernovas are among the most energetic events in the universe and It result in the complete disruption of stars at the end of their lives. Supernovas being the most energetic events in the universe cause the complete disruption of stars at the end of their lives.​

Answer 1

Answer:

Where Do Supernovas Take Place?

Supernovas are often seen in other galaxies. But supernovas are difficult to see in our own Milky Way galaxy because dust blocks our view. In 1604, Johannes Kepler discovered the last observed supernova in the Milky Way. NASA’s Chandra telescope discovered the

remains of a more recent supernova. It exploded in the Milky Way more than a hundred years ago.

What Causes a Supernova?

A supernova happens where there is a change in the core, or center, of a star. A change can occur in two different ways, with both resulting in a supernova.

The first type of supernova happens in binary star systems. Binary stars are two stars that orbit the same point. One of the stars, a carbon-oxygen white dwarf, steals matter from its companion star. Eventually, the white dwarf accumulates too much matter. Having too much matter causes the star to explode, resulting in a supernova.

The second type of supernova occurs at the end of a single star’s lifetime. As the star runs out of nuclear fuel, some of its mass flows into its core. Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova. The sun is a single star, but it does not have enough mass to become a supernova.