The Large Hadron Collider just discovered a new pentaquark, but how exactly does it fit in our current understanding of the Standard Model of elementary particles?
For decades, scientists have been working to find the missing 95% of our universe known as dark matter. So, how close are we to finding it?
A machine that can run for eternity is exactly what we need...if only it exists. A perpetual motion machine is impossible, here's why.