Lifeboat Foundation

NASA’s next mission to Mars will be its most advanced yet. But if scientists discover there was once life — or there is life — on the Red Planet, will the public be able to handle such an extraterrestrial concept?

NASA chief scientist Jim Green doesn’t think so.

“It will be revolutionary,” Green told the Telegraph. “It will start a whole new line of thinking. I don’t think we’re prepared for the results. We’re not.”

Investigating the heaviest elements known is rewriting our knowledge of chemistry and may even mean the end of the periodic table itself, writes Kit Chapman.

In 2018, Peter Schwerdtfeger published a paper that turned chemistry on its head. According to calculations he and his colleagues performed, oganesson – element 118, the heaviest known – was not a noble gas as you would expect from its position in the periodic table, but a highly reactive solid. Even stranger, it didn’t seem to have electron shells.¹

‘Well, that statement is oversimplified,’ says Schwerdtfeger, a theoretical chemist at Massey University in New Zealand. ‘You can still build up the electron densities from orbitals describing individual shells. What happens is that for oganesson the shell structure is barely visible, approaching an electron gas.’

Inspired by the unique and efficient swimming strategy of cephalopods, scientists developed an aquatic robot that mimics their form of propulsion.

These high-speed, squidlike robots are made of smart materials, which make them hard to detect—an advantage that has potential military reconnaissance and scientific applications—while maintaining a low environmental footprint.

Physicists Xiaobo Bi and Qiang Zhu used numerical simulations to illustrate the physical mechanisms and fluid mechanics of a squid’s swimming method, which uses intermittent bursts through pulsed jet propulsion. By using this form of locomotion, the new device can achieve impressive speeds, just like its animal inspiration. Bi and Zhu discuss their work in this week’s Physics of Fluids.

You probably hear a lot of news from NASA’s many amazing Mars missions: the Curiosity rover, InSight, MRO, and more. NASA is good at promoting their stuff of course, but also the images returned from all these missions are truly wonderful.

You may not hear as much from the European Space Agency’s Mars Express mission. Well, you may have heard about the lander Beagle 2: It set down safely on the surface, but two of the four solar panels didn’t deploy, dooming that part of that mission.

A team of chemists at California Institute of Technology has totally synthesized perseanol using a 16-step process for the first time. In their paper published in the journal Nature, the group describes their process and how well it worked.

In nature, perseanol is a molecule produced by the persea tree. Shortly after its discovery in the late 1990s, researchers found that the molecule was similar to ryanodine, a once-popular pesticide. They have similar architecture, though perseanol lacks a pyrrole-2-carboxylate ester. Because of the similarities, interest in using perseanol on commercial crops grew. Not much later, a cheaper alternative was found, and the molecule never made it to the farm. But interest in it persists because of its ecofriendly reputation. For that reason, chemists have been working to produce it in the lab—if successful, the results would be both cheaper and more environmentally friendly than products now in use.

The researchers note that ryanodine works as a pesticide by binding to calcium channels in insects’ muscles, paralyzing them. It can paralyze animals, too, but perseanol is believed to be more specific to insects, making it a potentially safer pesticide. The researchers also note that little research has been performed to determine the means by which perseanol kills bugs. That could change however, if interest in using perseanol as a pesticide is rekindled.

ELON Musk and his SpaceX team want to get its new rocket, which will one day ferry humans to the Moon, Mars and “beyond” into orbit within just six months.

The massive event celebrated 70 years of Communist rule — and an arsenal for its next decade.

China’s newest weapons were on display Tuesday at the massive military parade staged in Beijing to mark the 70th anniversary of Communist rule. China watchers noticed a new emphasis on airborne and naval drones and the public unveiling of a new hypersonic missile and a new ICBM.

The parade offered the first clear look at the supersonic DR −8 spy drone, which “would be expected to play a key role should there be a conflict with US aircraft carrier strike groups in the South China Sea or Western Pacific,” wrote the South China Morning Post.

The composition of the gut microbiome has been linked to countless areas of health. But could it really protect the gut against damage from radiotherapy treatment? Photo credit: Getty royalty-free.

A study of people in an intensive care unit has found that being in hospital can lead to harmful strains of bacteria taking over your microbiome.