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Isaac Arthur
Matrioshka Worlds
Published 25th April 2019
The galaxy contains countless billions of planets we might colonize, and we may build far more living area as space station habitats and megastructures, but Earth will always be unique and living here prized. Today we will see what we can do make Earth larger, by adding many layers of terrain in concentric spheres around us.
Suspicious Observers | Space News | 25th April 2019 | Snow Records, USA Quake Risks, Cosmic Magnetism
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HubbleESA
Hubblecast 120 : Continued Discrepancy In The Universe's Expansion Rate
Published 25th April 2019
Measurements of today's expansion rate do not match the rate that was expected based on how the Universe appeared shortly after the Big Bang over 13 billion years ago. Using new data from the NASA/ESA Hubble Space Telescope, astronomers have significantly lowered the possibility that this discrepancy is a fluke.
PBS Space Time
No Dark Matter = Proof Of Dark Matter?
Published 25th April 2019
We’ve been failing to detect dark matter for decades. Finally, the latest failure to detect dark matter may have actually proved its existence. One of these is true: either most of the matter in the universe is invisible and formed of something not explained by modern particle physics OR our understanding of gravity is completely broken. The debate over which is true has raged for decades, but may finally have been resolved in an unlikely way: the proof that dark matter exists, and really is an exotic, unknown substance, may have come from the discovery of two galaxies that appear to have no dark matter at all.
The effect of dark matter was first noticed in 1933, when the legendary Swiss astrophysicist Fritz Zwicky noticed that the galaxies in the Coma cluster were moving too quickly to remain gravitationally bound within that cluster. He guessed the presence of “dunkle m aterie” – a dark matter invisible to his telescope but whose gravitational effect held the cluster together. As with many of Zwicky’s predictions – like the existence of neutron stars and gravitational lensing - this wasn’t taken seriously until decades later. The hunt for dark matter began in earnest after the early 70s when Vera Ruben, discovered that the rotation rates of spiral galaxies were too fast given the mass of their visible stars alone. They should throw themselves to pieces spinning that quickly – that is, unless, a gravitational force of unseen origin was holding them together.
Nemesis Maturity
Extremely Rare Line-Up of Stars Is Coming
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Published 25th April 2019
A very rare gravitational lensing event, set to occur in 2028, has been predicted by a team of French astronomers led by Pierre Kervella of the CNRS/Universidad de Chile. It will provide an ideal opportunity to look for evidence of a planet around a nearby star.
Using both new and archive data obtained with a range of ESO telescopes, the team has predicted the trajectories of the fast-moving stellar duo known as the Alpha Centauri A and B, with negligible error. That has allowed them to predict every close alignment until 2050 between the Alpha Centauri pair and the stars which lie close to them on the sky—but which are in fact a great deal further away in space.
One of the most exciting alignments predicted by this study is between the more massive star in the Alpha Centauri pair, named Alpha Centauri A, and a distant background star—probably a red giant—nicknamed S5. In May 2028, there is a strong chance that the light from S5 will create an Einstein ring around Alpha Centauri A, observable with ESO's telescopes. This would provide a unique opportunity to look for planetary or low-mass objects in our nearest star system.
Read all about it here: https://phys.org/news/2016-10-rare-o...-centauri.html & https://www.aanda.org/articles/aa/ab...a29201-16.html & https://www.eso.org/public/images/ann16075a/
Lunar & Planetary Institute
50 Years Of Lunar Science : The Legacy Of "One Small Step"
Published 25th April 2019
This session will highlight the advances made in lunar science in the years since Apollo, ranging from major early discoveries about the fundamental nature of the Moon to important recent findings arising from sample studies and spacecraft missions. Talks will cover lunar formation and evolution and important insights from lunar igneous rocks, impact processes, and regolith dynamics.
Institute For Advanced Study
Matias Zaldarriaga | The Current State Of Gravitational Wave Searches With LIGO/Virgo
Published 23rd April 2019
A research team at IAS has recently announced the discovery of six new binary black hole mergers. The team applied a unique set of signal processing techniques to data made publicly available by the LIGO-Virgo Collaboration (the same group responsible for the first direct observation of gravitational waves in 2016), bringing external analysis to existing data to effectively double the number of results.
In an April 24, 2019 lecture, two members of the team—Matias Zaldarriaga, Professor in the School of Natural Sciences, and Barak Zackay, Peter Svennilson Member in the School—described these results for an audience at IAS.
SLAC National Accelerator Laboratory
Nitin Sawhney | Art Meets Science | Music For The Cosmos: An Exploration Of Art & Physics
Published 25th April 2019
Nitin Sawhney is one the most distinctive and versatile musical voices around today, achieving an international reputation across every possible creative medium. With over 20 studio albums to his name, including solo albums, film and soundtracks and compilations along with over 50 film and gaming scores, he has received a substantial wealth of major national and international awards for the work, including the Ivor Novello Lifetime Achievement Award in 2017. Most recently Nitin completed the entire composition of Netflix/Warner’s ‘Mowgli: Legend of the Jungle’ directed by Andy Serkis.
A visit to SLAC in October 2018 inspired Nitin Sawhney to create an original audio composition for two short visualization movies on the origins of the universe. At this presentation, he discussed what inspires him compositionally from a philosophical, universal, theological, anthropological and scientific perspective. Nitin has always been interested in music as a language to explore many different subjects, and he has frequently described his musical journey as a passport to possibility. His strong interest in physics drew him to a collaboration with SLAC, where he was particularly enchanted, mesmerized and fascinated by the simulations of dark matter and ionizing gas. His talk included the screening of the two short movies in 2D and a conversation with Risa Wechsler, Director, Kavli Institute for Particle Astrophysics and Cosmology.
Fraser Cain
Where Will The Voyagers Go Next?
Published 25th April 2019
NASA’s Voyager spacecraft are traveling on an escape trajectory from the Sun, and are now on a journey that will take them through the outer reaches of the Solar System and out into the Milky Way Galaxy.
They carry on board the Golden Records, a message from all humankind out into the cosmos.
In the thousands, millions and even billions of years of travel, where will they go? What will they see? Who might find them, and learn about us, long after we’re gone?
Deep Astronomy
Telescope Talk | Nat DeNigris & David Sanchez | The Large Millimeter Telescope
Published 25th April 2019
This week's Telescope Talk PRO hangout features science and technology from the Large Millimeter Telescope. Our guests Nat DeNigris and David Sanchez will be on hand to discuss this amazing facility being operated in Mexico.
The Large Millimeter Telescope is the world's largest single-aperture telescope in its frequency range, built for observing radio waves in the wave lengths from approximately 0.85 to 4 mm. It has an active surface with a diameter of 50 metres and 1,960 square metres of collecting area.
CosmoQuest
Daily Space
Streamed & Published 24th & 25th April 2019
Annie Wilson with your space & astronomy news for the two past days.
John Michael Godier's Event Horizon
Christian Ready | The Universe's Endgame
Published 25th April 2019
Christian Ready of Launchpad Astronomy joins John to discuss the end of the universe, red dwarfs living for trillions of years, proxima centauri, Pluto, Ultima Thule, and planet nine.
Christian's links:
http://www.launchpadworkshop.org/
https://www.youtube.com/christianready
Deep Thoughts Radio
Episode 372 : Forgotten Sci-Fi Movies
Published 25th April 2019
There are sci-fi gems that are often unseen by the modern population. In this episode, we review seven great films that everyone should see.
Osvaldo Franco | To The Stars AcademyQuote:
Posted by Star Tsar
Published 25th April 2019
Osvaldo Franco second time on the show and with all the rumours about TTSAs new series UNIDENTIFIED from the History channel out on May 31 2019 we thought it rude not to do another interview.
As mentioned
ECETI Australia
UFO Over ECETI USA
Recorded 24th & Published 25th April 2019
MJ Banias
Cafe Obscura | Dr. Garry Nolan | The DNA Of The Strange
Published 25th April 2019
Dr. Garry Nolan is the Rachford and Carlota A. Harris Professor in the Department of Microbiology and Immunology at Stanford University School of Medicine. He has published over 220 research articles and is the holder of 20 US patents, and has been honored as one of the top 25 inventors at Stanford University.
Some early research has speculated that certain humans are more predisposed to ’The Strange.’ Join MJ and Dr. Garry Nolan of Stanford University as they discuss Nolan's genetic research, his interest in anomalous phenomena, and how science, Forteana, UFOs, and the paranormal may coexist in one complex (meta)physical system. Pull up a chair. Grab a drink. Tip your server. Welcome to Cafe Obscura.
Suspicious Observers | Space News | 26th April 2019 | Super Volcano Discovery, High-Energy Storms
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Recently (3rd April) that SO, Benjamin featured on C2C AM
(Skip to 11:07 minutes for Ben's section)
Researcher, analyst and author Ben Davidson is the founder of the Suspicious Observers YouTube channel which specialises in the science surrounding the Earth, the Sun and the Cosmos. Davidson said that there appears to be some sort of planetary event involving a massive solar outburst every 12,000 years that results in sudden changes and great loss of life due to a disruption in the magnetic field of the Earth.
Astrum
What Is Boötes Void?
Published 26th April 2019
Astrum answers what Boötes Void really is.
Nemesis Maturity
One-Mile-Wide Rare Double Asteroid To Fly By Earth On May 25, 2019
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Published 26th April 2019
A large double asteroid is now approaching Earth’s vicinity and will pass by Earth safely on May 25, 2019. Closest approach is at 23:05 UTC (7:05 p.m. EDT) on May 25.
Asteroid (66391) 1999 KW4 consists of a primary space rock just under a mile wide (about 1.5 km), with a 0.3-mile (0.5-km) companion asteroid – an asteroid moon – orbiting the main asteroid. The asteroid and its moon will provide a good opportunity for both professional and amateur astronomers to observe the huge space rock. Amateur astronomers will be able to observe it for a few days around May 25.
Read all about it here: https://earthsky.org/space/double-as...st-may-25-2019 & https://www.cnet.com/news/walnut-ast...s-moon-in-may/ & https://echo.jpl.nasa.gov/asteroids/...ning.2019.html & https://cneos.jpl.nasa.gov/ca/ & https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=66391
Animations of asteroid
The Thunderbolts Project
Space News | Andrew Hall | Eye Of The Electric Storm
Published 26th April 2019
Today, author Andrew Hall continues his remarkable series of presentations on the promising new geology the electric universe offers. Like every rocky body in our solar system, our planet’s landscape demands a radical shift in perception. The standard geological toolkit, limited to the processes of plate tectonics, wind and water erosion, volcanism and impacts from space proves woefully inadequate to explain what we actually see. In this first episode of his new series, Andrew outlines how the high-energy atmospheric phenomena we see throughout the solar system, which are electromagnetic in nature, provide essential clues to understanding our planet’s visible features.
Thunderblog "The Eye of the Storm"
https://www.thunderbolts.info/wp/201...-storm-part-1/