Ah, Benny's parents, thanks for coming.

Hiya.

So, Benny has really blossomed this term.

You're telling me, he outgrew his bike. We sold it, on eBay.

Oh, that's not quite what I meant.

It's free to sell on there?

Free to sell?

Easy too. Sold Benny's bike, your guitar, my jacket.

You sold my guitar?

Shall we talk about Benning?

When it's this easy to sell for free, you can't help but say when it's eBay.

Things people love. T's and Cs apply, exclusive vehicles.

Hi, Steve Murski here for Scientific American Science Talk. It's February 11, 2016. When hundreds of

reporters and a throng of TV cameras jostle one another to get a good view in the National

Press Club in Washington, D.C., you figure maybe the president is talking. But today it was

astrophysicists. And the throng had gathered because the

researchers were announcing that they finally had evidence for gravitational waves, the first

observation of ripples in the fabric of space and time, thus confirming Einstein's prediction

of their existence a century ago. The gravitational waves in question

emanated from the collision of two black holes, some 1.3 billion light years away, which means

the collision took place 1.3 billion years ago, but the waves only arrived at our planet a few

months back. They were noticed by an experiment called LIGO for laser interferometer gravitational

...