expansion

What Came Before the Big Bang?

Astronomers are pretty sure what happened after the Big Bang, but what came before? What are the leading theories for…

7 years ago

What’s Causing The Universe To Expand?

We've all heard that the Universe is expanding, but why is it expanding? What's the force pushing everything outwards? If…

7 years ago

When Did the First Stars Form?

Shortly after the Big Bang, the Universe had cooled to the point that the first stars could form out of…

7 years ago

How Big is the Universe?

The Universe is big, but how big is it? That all depends on whether the Universe is finite or infinite.…

7 years ago

Is Andromeda Drifting Towards Us?

In a Universe that's expanding apart, isn't it strange that Andromeda is actually drifting towards us? Dr. Thad Szabo from…

8 years ago

How Old is the Universe?

The Universe is vast bubble of space and time, expanding in volume. Run the clock backward and you get to…

8 years ago

What Is The Big Rip?

Dr. Thad Szabo is a professor of physics and astronomy at Cerritos College. He's also a regular contributor to many…

8 years ago

What is the Universe Expanding Into?

Come on, admit it, you've had this question. “Since astronomers know that the Universe is expanding, what’s it expanding into?…

8 years ago

Why “The Big Bang” Is a Terrible Name

Have a discussion about the origins of the Universe and, ere long, someone will inevitably use the term "the Big…

8 years ago

30 Years of City Growth Seen From Space

Since the launch of its first satellite in 1972, the eight NASA/USGS Landsat satellites have made the longest continuous observations…

8 years ago