Light echoes give clues to planet nursery around star

Imagine you want to measure the size of a room, but it's completely dark. If you shout, you can tell if the space you're in is relatively big or small, depending on how long it takes to hear the echo after it bounces off ...

How a flying bat sees space

Recordings from echolocating bat brains have for the first time given researchers a view into how mammals understand 3-D space.

Review: Amazon's gizmos aim to be assistants for your abode

When I brought home review models of Amazon's Echo speaker, a sort of smart, voice-controlled speaker, and two Dash buttons that reorder household products with a single touch, I wasn't convinced I'd find them all that useful ...

Review: Amazon Echo is great and will only get better

I've been playing with one of Amazon's newest gadgets, the Echo, which is part Bluetooth speaker and part Siri. I believe we're all going to have something like this in our homes in the future.

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