helium

Who Discovered Helium?

In addition to its many commercial and scientific uses, helium is one of the most plentiful elements in our universe,…

7 years ago

What is the Life Cycle Of The Sun?

Like all stars, our Sun has a life-cycle that began with its birth (4.57 billion years ago) and will end…

7 years ago

Why Do Red Dwarfs Live So Long?

While our Sun will only survive for about 5 billion more years, smaller, cooler red dwarfs can last for trillions…

7 years ago

Sweet Sights for November Nights

Clear night ahead?¬†Let's see what's up. We'll start close to home with the Moon, zoom out to lonely¬†Fomalhaut 25 light…

7 years ago

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…

7 years ago

Can You Kill a Star With Iron?

Since the energy required to fuse iron is more than the energy that you get from doing it, could you…

7 years ago

How Quickly Does a Supernova Happen?

When a massive star reaches the end of its life, it can explode as a supernova. How quickly does this…

8 years ago

What Is A Wolf-Rayet Star?

Wolf-Rayet stars represent a final burst of activity before a huge star begins to die. These stars, which are at…

8 years ago

How Much Water Would Extinguish the Sun?

Have you ever wondered how much water it would take to put out the Sun? It turns out, the Sun…

8 years ago

What’s Inside Jupiter?

Jupiter is like a jawbreaker. Dig down beneath the swirling clouds and you'll pass through layer after layer of exotic…

8 years ago