https://www.space.com/halo-drive-black-holes-galaxy-travel.html

Study author David Kipping, an astrophysicist at Columbia University in New York, came up with the idea of the halo drive through what he calls "the gamer's mindset." Using what he called a "halo drive" -- named for the ring of light it would create around a black hole -- Kipping found that even spaceships with the mass of Jupiter could achieve relativistic speeds. "A civilization could exploit black holes as galactic waypoints," he wrote in a study accepted by the Journal of the British Interplanetary Society and detailed online Feb. 28 in the arXiv preprint server.

 

Who would volunteer to test the concept?

 

Who would volunteer to test the concept?

Somebody will do it.

 

https://www.technologyreview.com/s/613123/no-ibm-didnt-just-reverse-time-with-a-quantum-computer/

No, scientists didn’t just “reverse time” with a quantum computer

He’s right. Wild headlines don’t just give quantum computing a bad name. They do damage to science as a whole by convincing the public that science is so bewildering it’s beyond their comprehension. It’s tough enough to explain the paradoxes that actually exist in quantum mechanics without sensationalist embellishment. Time, whether any of us likes it or not, marches on.

 

The search for light particle dark matter. The nature of Dark Matter is made to fit into the mathematical models. Dark Matter is "invented" to fill the gaps. The Dark Matter effect exists so 'maybe' Dark Matter exists or is the equivalent of phlogiston.
https://www.cnet.com/news/physicist...gnet-to-find-ghost-like-dark-matter-particle/

One of the central puzzles in particle physics is discovering what particle (or particles!) makes up dark matter -- the form of matter that is responsible for 85 percent of the mass in the known universe.

Some physicists believe searching for a hypothetical particle known as an "axion" could lead to a better understanding of dark matter and to hunt for it, a team of US physicists have recently designed and tested a basketball-sized, donut-shaped apparatus that can seek it out.

ABRACADABRA-10 cm "A Broadband/Resonant Approach to Cosmic Axion Detection with an Amplifying B-field Ring Apparatus"
https://arxiv.org/pdf/1810.12257.pdf