supernova
A Star Disappeared in Andromeda, Replaced by a Black Hole
Massive stars about eight times more massive than the Sun explode as supernovae at the end of their lives. The…
Learning More About Supernovae Through Stardust
Dust grains older than the Sun can tell us about how supernovae enriched the cosmos with heavy elements, but the…
This Ancient Supernova Remnant Looks Like a Stellar Dandelion
In 1181, Japanese and Chinese astronomers saw a bright light appear in the constellation Cassiopeia. It shone for six months,…
Webb Finds Dozens of Supernovae Remnants in the Triangulum Galaxy
Infrared astronomy has revealed so much about the Universe, ranging from protoplanetary disks and nebulae to brown dwarfs, aurorae, and…
How a Nearby Supernova Left its Mark on Earth Life
When a massive star explodes as a supernova, it does more than release an extraordinary amount of energy. Supernovae explosions…
Only Hubble Could Make this Measurement of a Supernova
Calculating the distance to far-away objects, such as galaxy clusters and quasars, is difficult. But it is also critical to…
Supernovae: Why study them? What can they teach us about finding life beyond Earth?
Universe Today has recently investigated a myriad of scientific disciplines, including impact craters, planetary surfaces, exoplanets, astrobiology, solar physics, comets,…
Something’s Always Been Off About the Crab Nebula. Webb Has Revealed Why!
The Crab Nebula has always fascinated me, albeit amazed me that it doesn’t look anything like a crab! It’s the…
Earth’s Atmosphere is Our Best Defence Against Nearby Supernovae
Earth's protective atmosphere has sheltered life for billions of years, creating a haven where evolution produced complex lifeforms like us.…
The Nearby Star Clusters Come from Only Three Places
Many astronomy-interested people know of the Hyades and the Pleiades. They're star clusters in the Taurus constellation. They're two out…