Remember that some of the molecules in your “fresh” sip of water are actually billions of years old—far older than the solar system itself.
It looks doubtful that water existed on Earth before the solar system in which it is located. However, a recent peer-reviewed study published in the journal Science supports this.
Astronomers arrived at this conclusion by demonstrating that water in our solar system had to have been produced inside the huge cloud of gas and dust that preceded and was required for the creation of the star known as the Sun. This implies that water existed before the Sun exploded into a star, water that eventually made its way to Earth via “wet rocks” such as asteroids or comets.
The collective motion of animals in a group is a fascinating topic of research for many scientists. Understanding these collective behaviors can sometimes inspire the development of strategies for promoting positive social change, as well as technologies that emulate nature.
Many studies describe flocking behavior as a self-organized process, with individuals in a group continuously adapting their direction and speed to ultimately achieve a “collective” motion. This perspective, however, does not consider the hierarchical structure exhibited by many animal groups and the possible benefits of having a “leader” guide the way.
Luis Gómez-Nava, Richard Bon and Fernando Peruani, three researchers at Université Côte d’Azur, Université de Toulouse, and CY Cergy Paris Université have recently used physics theory to examine the collective behavior of small flocks of sheep. Their findings, published in Nature Physics, show that by alternating between the role of leader and follower, the flock ultimately achieves some form of “collective intelligence.”
A team of researchers at the University of Copenhagen’s Center for Star and Planet Formation, working with colleagues from Université de Paris, ETH Zürich and the University of Bern, has found evidence suggesting that most of the water that made up an ancient global ocean on Mars came from carbon-rich chondrite meteorites from the outer solar system. The study is published in Science Advances.
Prior research has suggested that at one time, Mars was either mostly or entirely covered by a watery ocean, and that the water came from gases seeping from below the surface and liquifying as they cooled. In this new effort, the researchers suggest the water more likely came from another source—meteorites traveling from the outer solar system.
The researchers came to this conclusion after studying fragments flung from the surface of Mars after asteroid strikes, which made their way to Earth as meteorites. The researchers studied 31 of them, looking most specifically for chromium isotopic fingerprints. Chromium-54 does not occur naturally on Mars; thus, its presence in crust samples from Mars would indicate that the surface had been struck by material from somewhere else.
A team of researchers from Purdue University claim to have discovered the “chemistry behind the origin of life” on Earth in simple droplets of water, and they’re using strikingly strong language to celebrate the findings.
Graham Cooks, chemistry professor at Purdue and lead author of a new paper published in the journal Proceedings of the National Academy of Sciences, called it a “dramatic discovery” and the “secret ingredient for building life” in a statement.
“This is essentially the chemistry behind the origin of life,” he added. “This is the first demonstration that primordial molecules, simple amino acids, spontaneously form peptides, the building blocks of life, in droplets of pure water.”
Drive just North of Scottsdale, Arizona, and you’ll find a loose grid of dirt roads known as the Rio Verde Foothills. It’s home to around 2,000 families drawn to rustic desert beauty and the freedom of living outside the city limits, but the town is about to become a symbol of the West’s growing water crisis.
John Hornewer moved to the area 23 years ago. When he discovered his new community didn’t have water service, he began hauling water for himself, along with some of his neighbors.
“As my neighbor saw me coming up the road with the trailer, they were like, ‘Hey, could you stop and drop off a load for me?’” Hornewer said.
The common longevity supplement NMN has recently been banned by the FDA for several reasons which have sent ripples through the longevity, sparking outrage and several concerns as to where the longevity industry is heading.
How will transportation look like in the future? In today’s video we take look into the Future of Transportation and explore some amazing technologies that will revolutionize how we travel in the future. There has been no denying that for several years in the past, the world has been undergoing massive changes, thanks to the advancement in technology. However, when it comes to transportation, the changes have not been that large. Transportations method such as cars, trains, ships, and planes have improved somewhat in functionality over time, but since their creation, they have in large part stayed the same.
In this video, we will unveil some amazing future transportation technologies that without a doubt will absolutely blow your mind!
The technologies we look at in today’s video include Earth-to-earth rockets, which will let you travel from one side of the earth to the other in less than 1 hour. This technology utilizes the famous Starship from Elon Musk’s SpaceX. We then move on to Hyperloop Systems, which is a cutting-edge new technology that makes use of a vacuum-sealed tube to send passengers or freight at high speeds. This concept was also introduced by Elon Musk, but through the company ironically named as The Boring Company. Further, we explore Fully Autonomous Vehicles, and in more in depth — into the various level of autonomation available today and what will be there in the future.
The video also covers Flying Taxis and Hypersonic Air Travel. The flying taxis, like the ones being constructed by Volocopter, is a new transportation method that could take the world by storm in the future. The same goes for hypersonic air travel that will let passenger again take to the sky in hypersonic aircraft similar to the Concord in the past, only much safer and considerably faster.
Elon Musk posted pictures with engineers at Twitter’s San Francisco headquarters, saying they were leaving after the billionaire asked some employees who had not resigned to meet with him.
