Australia on Friday shrugged off Chinese anger over its decision to acquire US nuclear-powered submarines and vowed to defend the rule of law in airspace and waters where Beijing has staked multiple hotly contested claims. US President Joe Biden announced the new Australia-US-Britain defence alliance on Wednesday, extending US nuclear submarine technology to Australia as well as cyber defence, applied artificial intelligence and undersea capabilities. China's government described the alliance as an "extremely irresponsible" threat to regional stability, questioning Australia's commitment to nuclear non-proliferation and warning the Western allies that they risked "shooting themselves in the foot". China has its own "very substantive programme of nuclear submarine building", Australian Prime Minister Scott Morrison said Friday in an interview with radio station 2GB. "They have every right to take decisions in their national interests for their defence arrangements and of course so does Australia and all other countries," he said.

The Marines are about to get their hands on an impressive bit of hardware: A wearable robotic exoskeleton that gives users super strength. The company delivering the unit, a defense-focused subsidiary of Sarcos Robotics developed the exoskeleton for industrial uses, including in energy and construction. An executive guide to the technology and market drivers behind the $135 billion robotics market. Still, in many ways, this is a return to roots for Sarcos. In 2000, the company was part of a storied class of DARPA grant recipients working on powered exoskeletons for defense purposes.

The US military is testing delivery drones that can transport supplies over long distances and be thrown away after each use. Made of cheap plywood, the bigger version of the two gliders being tested can carry over 700 kilograms, or roughly 1800 pounds. As reported in IEE Spectrum, the scientists at Logistic Gliders, Inc. revealed that their gliders just successfully completed a series of tests with US Marines. If cleared for mass production, the LG-1K and its bigger counterpart, the LG-2K, could cost as little as a few hundred dollars each. Using unmanned aircraft for delivery is an idea both the military and private sector have explored for years. Traditional aircraft guzzle fuel, cost money to purchase and maintain and require a human pilot.

Today on In Case You Missed It: The US Marine Corps announced its latest Innovation Challenge for robots that can handle dull, dirty or dangerous work autonomously, leaving humans free for more important tasks. Meanwhile the University of Pennsylvania has a researcher flying a quadcopter through 45-degree angle window openings at top speeds, with few extra onboard sensors. The algorithm behind it is neat, even if the potential applications make us uncomfortable. You may already know why we should be covering up our computer webcams, but here's more ammo if that's needed. As always, please share any interesting tech or science videos you find by using the #ICYMI hashtag on Twitter for @mskerryd.