One of the most stubborn issues in cosmology today concerns the universe's rate of expansion. Scientists know it's expanding, ...

This newly discovered explosion from the dawn of time is helping scientists map the chemical evolution of the first galaxies.

Artist's impression of a supernova. By ESO/M. Kornmesser/Wikimedia Commons, CC BY My hypothesis is that remnants of a supernova – an exploding star – had an impact on the Earth’s past climate, causing ...

What can imaging supernovae (plural for supernova) explosions teach astronomers about their behavior and physical characteristics? This is what a recent study published in Nature Astronomy hopes to ...

On the evening of Sunday, January 12, the SaddleBrooke Skygazers Astronomy Club will present Christa DeCoursey, a fourth-year PhD student at the University of Arizona and a member of the James Webb ...

Exploding stars in near-solar space may have triggered at least two mass extinction events in Earth's history. An analysis of the frequency of supernova explosions in the Milky Way, led by ...

Stars often die with a final burst of beauty. For the first time, astronomers have captured visual proof that a star can explode not once, but twice before fading forever. Using the European Southern ...

Twinkle, twinkle, little star. How I wonder what you, wait a minute, why are you twinkling so much? Um, guys, that's no ...

It’s easy to forget that stars, just like us, have lifetimes. They’re born, they live, and eventually, they die. And for some stars, their death is dramatic, producing an explosion so powerful it can ...

Francis Thackeray has received funding from the National Research Foundation. Global cooling that happened millions of years ago was thought to be the result of ocean currents. He suggests instead it ...