Narrator: Before "I Spy," Walter was a commercial photographer ... Originally, Walter used a large-format camera to photograph each scene. This created huge 8-by-10 negatives.

Emma Fierberg: I'm looking for the camera. Is it on the doorknob? Michelle Yan: It's not on the doorknob. Michelle Yan: So, we got our hands on some spy gear from Amazon. (These are so tiny).

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or ...

Researchers in China have developed an exceptionally powerful synthetic aperture lidar system that could enable the nation to scrutinize foreign assets – particularly military spy satellites ...

and tell the distance to objects with an accuracy of 15.6mm – a level of detail 100 times better than what can be seen with the leading spy cameras and telescopes that use lenses.

Police arrested a hostel warden in Sangareddy district after hidden cameras were found inside phone chargers at a girls’ ...

The camera built by the Chinese Academy of Sciences’ Aerospace Information Research Institute can decipher details just 1.7mm across from 100km away (Getty) Scientists in China have built the world’s ...