gravity
How Strong is Gravity on Other Planets?
Gravity is a fundamental force in our universe. And on the planets in our Solar System, it is dependent on…
What are Wormholes?
In science fiction, wormholes are a method often used to travel great distances across space. Are these magic bridges really…
What If We Dug a Tunnel Through the Earth?
If we could dig a tunnel through the Earth, what would happen? And is this even possible? (more…)
Did We Need the Moon for Life?
Astronomers hate the Moon because it ruins perfectly good observing nights. But is it possible that we all need the…
What is Tidal Locking?
The Moon is tidally locked to the Earth, which means that it always shows one face to our planet. In…
Is Jupiter Our Friend Or Enemy?
Like me, you’re probably a little ego-geocentric about the importance of Earth. It’s where you were born, it’s where you…
Is the Universe Dying?
Is our 13.8 billion year old universe actually in its death throes? Poor Universe, its demise announced right in it’s…
Could We Terraform a Black Hole?
Is there any possible way to take a black hole and terraform it to be a place we could actually…
Why is it Tough to Land on a Comet?
Why is landing on a comet so difficult and what does this tell us about future missions to comets and…
Could We Make Artificial Gravity?
It's a staple of scifi, and a requirement if we're going to travel long-term in space. Will we ever develop…