The size of a cell phone: NASA has begun testing tiny underwater robots. Photos and videos
They could play a key role in detecting chemical and temperature signals that could indicate alien life
Other News
Astronomers have spotted a "wreath" and a "Christmas tree" in space. Photo
These are festive star clusters
The powerful Willow chip helped Google gain access to parallel universes: what scientists say
New development will help solve key problems on Earth
Google has created a chip that "may be more than a billion times faster" than the fastest supercomputers
Company says quantum computer can solve problem in five minutes
The winter near the Ukrainian station in Antarctica has become the coldest in the last 6 years: why this is good news
Polar explorers share their impressions and photos
