Does the fastest tennis serve depend on height?

Does the fastest tennis serve depend on height?

With the Aussie Open here again, Rhett Allain investigates...
More
Mind-reading - scientists are one step closer

Mind-reading - scientists are one step closer

Science or science-fiction?
More
What's in a nerve?

What's in a nerve?

Planet Science investigates nerve cells
More
Fear of heights

Fear of heights

Do you have acrophobia?
More
Oh no...sprouts!

Oh no...sprouts!

It's everyone's least favourite Christmas food, but if you don't like them, you can blame your genes!
More

Join in
More
What's next for NASA?
Final flight for NASA's space shuttles

More
What do animals do in winter?
How do animals survive a cold winter?

More
Tornado season strikes again...
Southern USA battens down the hatches and gets ready for some wild weather!