the sun
Where is Earth in the Milky Way?
The Milky Way Galaxy is a very, very big place. And figuring out where Earth resides inside of it has…
How Fast Can Stars Spin?
Stars can spin faster or slower than the Sun. What’s the fastest that’s ever been discovered, and what’s the fastest…
Why Does the Sun Rise in the East (and Set in the West)?
Since time immemorial, humans have known that the Sun will rise in the east and set in the west. But…
The Orbit of Jupiter. How Long is a Year on Jupiter?
A a distant gas giant, Jupiter takes a considerable amount of time to orbit our Sun. In act, a single…
Friendly Giants Have Cozy Habitable Zones Too
According to a recent study from the Carl Sagan Institute, aging red giant stars could still have habitable zones that…
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…
Will Earth Survive When the Sun Becomes a Red Giant?
In billions of years, the Sun will enter its "Red Giant" phase and expand considerably. So naturally, we have to…
What Is The Geocentric Model Of The Universe?
The geocentric model of the universe, in which the Sun, planets and stars revolved around the Earth, was the accepted…
The Sun
The Sun has always been the center of the Universe for humanity. However, the nature, composition and lifespan of the…
Who Was Nicolaus Copernicus?
Polish astronomer Nicolaus Copernicus revolutionized astronomy by proposing that the Earth and other planets revolved around the Sun