Alison Klesman,Astro
Type Ia supernovae are one of the most indispensable tools in an astronomer's toolkit. These shining but brief events are one of just a few reliable standard candles that allow us to measure not only vast distances accurately, but also determine the expansion rate of the universe. However, and because they're both brief and unpredictable,it's been difficult to catch a supernova in the earliest stages of occurring until now. This March, an astronomer at the University of Arizona managed to spot a supernova just a day frail, or extensive follow-up observations are now telling us more approximately the...
Source: realclearscience.com