red giant
This Star Has Reached the End of its Life
About 10,000 light years away, in the constellation Centaurus, is a planetary nebula called NGC 5307. A planetary nebula is…
Why Doesn’t Earth Have Rings?
You'd think Saturn has all the luck, with its awesome rings. But it turns out, living on a planet with…
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…
What if Earth Stopped Orbiting the Sun?
What if the Earth just stopped dead in its tracks while orbiting the Sun? It would plummet straight down of…
What is the Biggest Star in the Universe?
If our Universe could be likened to a playground, our Sun would be one of the little kids playing in…
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…
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…
How Do You Jumpstart A Dead Star?
It's a staple of science fiction, restarting our dying star with some kind of atomic superbomb. Why is our Sun…
What Is The Future Of Our Sun?
Who knows what the future holds for our Sun? Dr. Mark Morris, a professor of astronomy at UCLA sure knows.…