By Charlie Levin
One of the most amazing astronomical events, and one of the least well-understood, was just observed.
For the first time ever, scientists were able to view a supernova: the dramatic, fiery death of a massive star much larger than our sun. This type of explosion is infamous for being one of the most violent, spewing out gases and fusing heavy elements, which then enter the universe and are used to form future planets and solar bodies.
What is left behind from this event is a neutron star, the dense core of the solar body. In some more extreme cases, a gaping hole in space-time, known as a black hole, is left behind.
Due to the rarity of these events, for the last one hundred years, even as technology developed, we have waited to experience one of these up close. Collecting new data was seen as a crucial next step to understanding what our universe holds.
Over the past thirty years, as technology advanced, we began to get hints about what could possibly happen, waiting for much-needed data.
Finally, in April 2024, the Asteroid Terrestrial-impact Last Alert System (ATLAS) detected one. Scientists turned their telescopes, specifically the Very Large Telescope (VLT), towards this part of the sky, and, after waiting for more than a year and a half, we finally have the data.
It’s surprising. A massive star holds a spherical shape due to the gravitational balance of all of its mass. So, scientists believed it was a rational conclusion that a supernova would follow this same pattern— that it would be spherical in shape.
However, after some crucial observations and the use of the VLT FORS2 instrument, one specifically designed to measure the path and properties of certain light, it was discovered that the radiation produced by this explosion didn’t spread out equally when the outer layer of the star was shed.
Another interesting piece of data: we were able to observe the actual processes of the supernova itself. Scientists were able to use the data and images collected to create models about the ripple effect that stars produce when the star collapses and explodes outward.
Analyzing these models will allow us to learn more and more about these supernovae and fully understand the scale and processes of the universe.
As we stand now, there is still much more data that needs to be sorted through and interpreted; hopefully, in the future, we will be able to observe more supernovae and obtain more data, now that we have the technology.
Looking at this from a purely technological perspective, this was a major breakthrough in science and will help us to make many more discoveries in the near future and understand what our universe holds.