An army of micro-robots can wipe out dental plaque
source

A member of the 324 Squadron during the ANZAC Day Dawn Service at Coogee Beach in Sydney, Australia.

Members of the police carry a demonstrator during the Extinction Rebellion protest at the Marble Arch in London, Britain.

Dr. Ali Ertuerk, Group Leader at the Institute for Stroke and Dementia Research (ISD) at the Ludwig Maximillian's University, looks at a transparent mouse at his laboratory in Munich, Germany. Mr. Ertuerk and his team developed DISCO transparency technology which is used by scientists from diverse biomedical research fields to generate high resolution views of intact rodent organs and bodies, a milestone on the way to generate 3D-bioprinted human organs.

A Sudanese couple enjoys the shallow waters of the Nile River in Khartoum, Sudan.

Turkana tribesboy attends a wedding ceremony near Todonyang, Kenya.

A U.S. map is seen inside the "House of the Refugee" which gives temporary shelter to migrants released by ICE and U.S. Customs and Border Protection (CBP) due to overcrowded facilities, in El Paso, Texas, U.S. April 25, 2019.

Vice President Joe Biden is seen in a plane window after landing in Vilnius, Lithuania, March 18, 2014.

Over 100 firefighters were called to combat a multiple-alarm manhole fire in #MidtownManhattan today

When is a colleague's birthday! ☺️ #K9

'Biden's logo is a boob!' Twitter erupts with mockery over former vice president's new branding as armchair designers see everything from 'patriotic toothpaste' to letters rubbing each other 'nonconsensually'

Southern California police have released body camera footage showing the fatal shooting after a public outcry for transparency cops shoot dead driver, 22, pulled over with a rifle between his legs after pressure to release the footage from Black Lives Matter and the victim's family. 🔫👮🏻‍♂️#shooting

Facebook Inc broke Canadian privacy laws when Cambridge Analytica it collected the information of some canadian 600,000 citizens, a top watchdog said on Thursday. 😡 #delete_facebook

Heroic moment Good Samaritans rush into freezing knee-deep water in the pouring rain to save Texas driver who flipped his truck ☺️ #fuck #lucky

#fuck #lucky 😱

The Windy City is mighty pretty: Dazzling lightning illuminates the Chicago skyline and strikes four skyscrapers #WOW

This map illustrates the top 10 best places to live in 2019, according to the annual list by U.S. News & World Reports. Austin, Texas takes the top spot thanks to a low cost of living and strong job market.

'Multiple people are killed' and 10 injured in a fiery crash on a Colorado interstate after a speeding big rig careened into a school bus, three trucks and 12 cars before exploding in a huge fireball 🔥😱

A YouTuber was filming his journey when the speeding big rig blew past him at breakneck speed taking him by surprise 😱