Scientific American’s Post

A paper, published in the open access journal Galaxies MDPI, outlines the key goals for the next-generation Event Horizon Telescope (ngEHT). The research, mentioned in Scientific American, discusses the groundbreaking achievements of the Event Horizon Telescope (EHT), which has captured the first images of supermassive black holes (SMBHs) residing within the M87 galaxy and at the centre of the Milky Way. The research outlines how a series of scientific objectives can drive advancements in very-long-baseline interferometry (VLBI) over the coming decades. These advances promise new discoveries illuminating the extraordinary role of black holes across various astrophysical scales. Read more about this research: https://brnw.ch/21wJ2vC or view the news story: https://brnw.ch/21wJ2vB #BlackHoles #EventHorizonTelescope

“We have to take responsibility for what we're doing in orbit, and part of that is to use it to its advantage but then treat it responsibly afterwards and dispose of [our] stuff,” says Astroscale U.S. Executive Vice President Dr. Clare Martin.     In a recent Scientific American article by Sarah Scoles, Clare highlights space operators’ shared responsibility to preserve access to space as more satellites are launched and more orbital debris will need to be removed.    “It’s very important to make sure that we keep the resource of space available for future generations.”    See more of what Clare and other industry experts had to say on the topic in the full piece: https://lnkd.in/gDPBAqhE      #SpaceSustainability #OnOrbitServicing   

Associate Professor Allison Jaynes is quoted in this Scientific American article about peculiar bursts of energy called chorus waves detected in deep space. These waves could pose problems for long-distance space travel. #spaceweather https://lnkd.in/g_yGJ9VT

Weekend read. ISS trash landing: a special spacecraft will guide the space station through Earth’s atmosphere, but what about other large pieces of space debris? The Pacific Ocean’s Point Nemo (48°52.6′S 123°23.6′W), at 2,688 kilometers (1,670 miles) the spot on the planet farthest from land, will witness splashdown of the remnants of the ISS in 2031, marking the end of its service since launch on 20 November 1988. That crash will be aided by a SpaceX-built vehicle that will propel the ISS seaward with the aim of ensuring that its debris doesn’t hit anyone or anything on the way down. When a satellite takes a one-way trip through the atmosphere, the process is called deorbiting. That journey can be purposeful and controlled—as with the ISS. It can also be passive, in which a spacecraft is allowed to descend and burn up as it will. That latter option is the norm with small, new satellites and older satellites that are dead and out of anyone’s control; sometimes, the latter are big enough that parts of them survive reentry. In the coming years, the number of satellites set to launch—which will later have to deorbit—is due to increase drastically. Ensuring their lives end safely—minimizing risks to people, property, planes and the atmosphere itself—is no small task, whose details scientists, engineers and regulators are grappling with. The biggest dangers come from larger spacecraft, old or new, that may not disintegrate on reentry. “A bunch of us have been calling for an end to uncontrolled reentries of massive satellites,” says Jonathan McDowell, an astrophysicist at the Center for Astrophysics | Harvard & Smithsonian and publisher of the newsletter Jonathan’s Space Report, which tracks space launches. “It’s just not okay.” Space Intel creates sensors and AI for airborne safety, environmental protection, and high-resolution Earth and space imaging. Stay safe and informed! #WeSawItComing #Satellites #SatelliteCollisions #SpaceDebris #Space #SpaceIntel #SpaceSustainability

GOOD READING: TIME TO BECOME SERIOUS ABOUT SPACE DEBRIS "These “fully demisable” spacecraft components are no such thing, and the implications are terrifying." In the safety field self-regulation is a dirty joke. Some people even propose to reward those following safety voluntary consensus standards. Crazy idea! It is like proposing to reward someone for not driving drunk. ISO Space Debris Standards are useless unless compliance is made mandatory by national regulations, and verified by competent institutions.

Great article highlighting the critical issue of space debris. I strongly encourage everyone to dive deeper into the importance of engineering innovations and legislative measures to ensure satellites are responsibly deorbited. These efforts are essential for fostering the sustainable use of outer space, not just for our benefit today, but for future generations. Let's work together to clean up space before it's too late!

😮 A Chinese junk fell on #Florida !!! #SpaceSecurity, detailed study of content, analysis of materials and the cause of its failure, and a chronological survey of similar events, with date , time, regions of landing, and the scale of harm & destruction. The United Nations Office for Outer Space Affairs (UNOOSA) should 1. Register and follows each space launch around the world, to be sure that the launch will not be another debri threatening spaceflights & people at home. 2. An insurance systerm from the launching country to compensate the harm and destruction made by its debri on population and property. 3. Companies that their space technology has more debris in space must be postponed until a confirmation from (UNOOSA)

1-Orbital module from China's Shenzhou 15 astronaut mission, falls to Earth over Southern California, (April 2 2024) 2-Suspected Space-Junk Strike in Florida Signals New Era of Orbital Debris (April 12 2024) Does #NASA #ESA or any responsible agency on this planet noticed that will get a lot worse and danger to people on the ground or on airplanes? Two places hit in the same country just ten days apart. The problem is more than 60 years old. And almost every month there are conferences to talk about space debris in some place in th world. There are many more, but let's talk about the last 10 years of conferences with all the monetary expenses for their production and where are the solutions? #orbitalrecycling #moonrecyclingstation #spacejunkcollector

📃Scientific paper: Dynamical chaos in the restricted three body problem;Chaos dynamique dans le problème à trois corps restreint Ref.: HAL CCSD, 2015 Continued on ES/IODE ➡️ https://etcse.fr/miWx ------- If you find this interesting, feel free to follow, comment and share. We need your help to enhance our visibility, so that our platform continues to serve you. This post is part of our daily initiative to curate and share scientific studies, with full respect for copyright.

I am delighted to share our recent publication in Physical Review Letters, which was selected as an Editor's Suggestion. We describe an exciting multi-scale phenomenon of "Canard Cascading"