Question

the size of the largest space station also explan what is a super nova​

Answer 1

Nasa

Search NASA.gov

NASA TV

MORE STORIES

Sep 4, 2013

What Is a Supernova?

supernova_1-xxltn.jpg

A supernova is a large explosion that takes place at the end of a star's life cycle.

Credits: NASA

A supernova

On the left is Supernova 1987A after the star has exploded. On the right is the star before it exploded.

Credits: NASA

This article is part of the NASA Knows! (Grades 5-8) series.

A supernova is the explosion of a star. It is the largest explosion that takes place in space.

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.

Answer 2

Answer:

Some stars burn out instead of fading. These stars end their evolutions in massive cosmic explosions known as supernovae. When supernovae explode, they jettison matter into space at some 9,000 to 25,000 miles (15,000 to 40,000 kilometers) per second.

Explanation:

For a star to explode as a Type II supernova, it must be at several times more massive than the sun (estimates run from eight to 15 solar masses). Like the sun, it will eventually run out of hydrogen and then helium fuel at its core. However, it will have enough mass and pressure to fuse carbon.

hope this helps you

take care