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The merging of two neutron stars emits both light and gravitational waves at the same time, so if gravity and light have the same speed, they should be detected on Earth at the same time. Given the distance of the galaxy that housed these two neutron stars, we know that the two types of waves had traveled for about 130 million years and arrived within two seconds of one another.

So, that’s the answer. Gravity and light travel at the same speed, determined by a precise measurement. It validates Einstein once again, and it hints at something profound about the nature of space. Scientists hope one day to fully understand why these two very different phenomena have identical speeds.

The latest data improves our understanding of how clouds in “hot Jupiter” exoplanets like this might appear up close. They are likely to be broken up, rather than a single, uniform blanket over the planet.


Photochemistry is the result of light triggering chemical reactions. This process is fundamental to life on Earth: it makes ozone, for example, which protects us from harsh ultraviolet (UV) rays.

New observations of WASP-39 b, a Jupiter-sized planet orbiting a Sun-like star found 700 light years away, confirm the presence of a never-before-seen molecule in the atmosphere – sulfur dioxide – among other details.

The James Webb Space Telescope has previously studied WASP-39 b. In August, it captured the first clear evidence for carbon dioxide. Now, it has focused its array of highly sensitive instruments on the planet once again, revealing not just an isolated ingredient, but a full menu of atoms, molecules, and even signs of active chemistry and clouds in the broiling atmosphere. This latest data, far more detailed than any previous telescope, shows the amazing capabilities of Webb, and hints at the potential for future discoveries that may reveal biosignatures.

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I’m going to tell you about the craziest proposal for an astrophysics mission that has a good chance of actually happening. A train of spacecraft sailing the sun’s light to a magical point out there in space where the Sun’s own gravity turns it into a gigantic lens. What could such a solar-system-sized telescope do? Pretty much anything. But definitely map the surfaces of alien worlds.

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In space — Recent (China Manned Space Agency — No access Chinese mainland) 1. Various of Shenzhou-14 astronaut Cai Xuzhe unpacking packages 2. Various of Shenzhou-14 crew checking facilities, opening boxes and inspecting equipment 3. Shenzhou-14 crew installing and trying out microgravity resistance exercise device 4. Shenzhou-14 astronaut Liu Yang exercising with microgravity resistance exercise device.

The Shenzhou-14 astronauts have completed several missions over the last two weeks, including the installation of equipment in the work area of the Mengtian lab module which they entered for the first time on Nov. 3. Among the scientific and basic living equipment, the astronauts have also set up a small home gym to help them stay fit. The crew members-Chen Dong, Liu Yang and Cai Xuzhe can now keep fit in the lab with a special microgravity resistance exercise device similar to a rowing machine with which astronauts can do squats, heel lifts, hard pulls, rowing and shoulder exercise. Resistance exercise is especially important for astronauts living in zero gravity conditions which can rapidly reduce muscle mass and bone density.

On Sunday, the trio entered the Tianzhou-5 cargo craft to fetch supplies for the Tiangong space station.

Earlier this year, we announced our vision to empower any developer to become a space developer through Azure. With over 90 million developers on GitHub, we have created a powerful ecosystem and we are focused on empowering the next generation of developers for space. Today, we are announcing a crucial step towards democratizing access to space development, with the preview release of Azure Orbital Space SDK (software development kit)—a secure hosting platform and application toolkit designed to enable developers to create, deploy, and operate applications on-orbit.

By bringing modern cloud-based applications to spacecrafts we not only increase the efficiency, value, and speed of insights from space data but also increase the value of that data through the optimization of ground communication.

Many of the fundamental technological improvements that have accelerated the growth of Internet of Things (IoT) in the past decade remain untapped by space development missions today. With the Azure Orbital Space SDK, we will help bring those improvements to space through modern agile software deployment, container-based development, use of higher-level languages, and cloud-managed networking. Extending the power of the Azure cloud into space means that spacecraft development will take less time, cost less, and bring more people into the space development ecosystem.

The Internal Ramp Theory for the Great Pyramid of Egypt is one of the most interesting ideas ever proposed for its construction. French architect Jean-Pierre Houdin has spent more than 20 years developing and refining this idea.

In October of 2022, Houdin published an update to his theory which reflects the ScanPyramids findings from the past six years. The ScanPyramids ‘Big Void’ is an intriguing clue that Houdin may be correct with his notion of the Grand Gallery being used as a counterweight ramp for the largest pyramid stones.

The ‘Big Void’ may be another Grand Gallery-like space which could be used for the same purpose. Institutional Egyptology remains unreceptive to Houdin’s publications, nor the extremely confident results from the ScanPyramids mission.

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Researched and Written by Jon Farrow.
Narrated and Edited by David Kelly.
Animations by Jero Squartini https://www.fiverr.com/share/0v7Kjv.
Laniakea animation by Alperaym.
Incredible thumbnail art by Ettore Mazza, the GOAT: https://www.instagram.com/ettore.mazza/?hl=en.

Huge thanks to Daniel Pomarède for the use of his images of Laniakea and our local cosmological neighborhood: https://twitter.com/danielpomarede.

Thank to Pablo Carlos Budassi for his wonderful images of the KBC Void, Shapley Supercluster and Bootes Void.

Stock footage taken from Videoblocks and Artgrid, music from Epidemic Sound, Artlist and Silver Maple. Space imagery also used from NASA and ESO.

Image Credits:

Dr. Egbert Edelbroek, Ph.D. is the CEO & Founder of SpaceBorn United (https://spacebornunited.com/), a research and mission design company focused on researching optimal conditions for human reproduction in space, with a focus on novel assisted reproductive technologies.

Dr. Edelbroek is passionate about accelerating space life science research, helping humanity to become a multi-planetary species. His interest in space exploration accelerated shortly after he became a sperm donor in 2010 and when learned all about assisted reproductive technologies. This inspired him to explore options to re-engineer existing IVF technology for application in space.

Dr. Edelbroek earned his Ph.D. studying courage development in organizations from Radboud University, a Master’s degreein neuro-linguistic programming & coaching from IEP Nijmegen, and a Master’s degree in organizational sciences from Tilburg University.

Dr. Edelbroek enjoys innovating and exploring boundaries by connecting domains and experts that usually remain separated in order to expand the human comfort zone.