Today we know of over 4000 exoplanets, or extrasolar planets: worlds orbiting around stars not our sun. But in 1992, possibly the first exoplanet ever discovered came in the form that scientists did not expect. It was a pulsar planet, or a zombie planet, formed from the matter and debris in the aftermath of an exploding star.
In the 70s and 80s there had been exoplanets theorized and mathematically calculated by the strange behavior of stars. But it wasn’t until 1992 that a breakthrough in exoplanet hunting proved solid evidence that extrasolar planets are actually out there.
First of all, you need to know that there are many types of stars. They’re all not like our sun. One type of star is known as a neutron star. They’re the second densest type of object in the universe outside of black holes. They form when a giant star dies and explodes outward into space after its core has collapsed. Basically, the star becomes too massive to go on and explodes its energy outwards. The core of the star collapses and the star will either become a black hole or a neutron star.
Some neutron stars are called “pulsars” because they pulse ...