white dwarf
What Are Multiple Star Systems?
Not all stars are alone. Some come in pairs and more. And when there are multiple stars in a system,…
What is a Nova?
We’ve talked about supernovae plenty of times, but what about just regular, plain old novae? What are they, and how…
Bright Binocular Nova Discovered in Lupus
A powerful explosion on an otherwise obscure star in the constellation Lupus is now bright enough to see in binoculars.
What are Quark Stars?
Astronomers have theorized there could be an intermediate stage between neutron stars and black holes called quark stars. Are they…
Can Stars Be Cold?
Stars are hot, we know that, everyone knows that. But are there “cold stars”? It all depends on what you…
An Old Glass Plate Hints at a Potential New Exoplanet Discovery
How astronomers found an potentially new and exciting exoplanetary system lurking on a glass plate stored away for nearly a…
Who Discovered Helium?
In addition to its many commercial and scientific uses, helium is one of the most plentiful elements in our universe,…
Messier 4 (M4) – The NGC 6121 Globular Cluster
During the late 18th century, Charles Messier began to notice that a series of “nebulous” objects in the night sky…
Why Do Red Giants Expand?
We know that the Sun will last another 5 billion years and then expand us a red giant. What will…
Astronomy Cast Ep. 382: Degenerate Matter
In some of the most extreme objects in the Universe, white dwarfs and neutron stars, matter gets strange, transforming into…