A collaborative study by the University of Oxford and MIT has uncovered a 3.7-billion-year-old magnetic field record from Greenland, demonstrating that Earth’s ancient magnetic field was as strong as it is today, crucial for protecting life by shielding against cosmic and solar radiation.
A new study has recovered a 3.7-billion-year-old record of Earth’s magnetic field, and found that it appears remarkably similar to the field surrounding Earth today. The findings have been published today (April 24) in the Journal of Geophysical Research.
Without its magnetic field, life on Earth would not be possible since this shields us from harmful cosmic radiation and charged particles emitted by the Sun (the ‘solar wind’). But up to now, there has been no reliable date for when the modern magnetic field was first established.
NASA’s Mars Curiosity rover has made consistent and puzzling findings while roaming the barren surface of the planet’s Gale Crater: mysterious puffs of methane gas that only appear at night and vanish during the day.
Over the years, the rover’s Sample Analysis at Mars (SAM) instrument has repeatedly detected significant concentrations of the gas, sometimes spiking to 40 times the usual levels — and scientists are still trying to figure out the source, as NASA details in a new blog post.
It’s an especially intriguing finding, given that living creatures produce methane here on Earth, giving the findings special significance as NASA scans the Red Planet for signs of subterranean life.
Is HD 101,065 or Przybylski’s Star salted with Plutonium? David Kipping of Cool Worlds lab joins John Michael Godier to discuss the search for exomoons and te…
The galaxy is a vast place with billions of potential new worlds for humanity to colonize, but interstellar space is so enormous that reaching even the nearest stars and planets by spaceship would take decades at best, and maybe many centuries. Even on arrival terraforming those barren planets would take just as long.
Two options for overcoming the immensity of space and time are the Seed Ship and the Data Ship, automated vessels able to colonize the worlds for us. We will examine those today, their advantages, limitations, and misconceptions, and variations of them we might use to seed the stars. Join this channel to get access to perks: / @isaacarthursfia. Visit our Website: http://www.isaacarthur.net. Join Nebula: https://go.nebula.tv/isaacarthur. Support us on Patreon: / isaacarthur. Support us on Subscribestar: https://www.subscribestar.com/isaac-a… Group: / 1,583,992,725,237,264 Reddit: / isaacarthur Twitter: / isaac_a_arthur on Twitter and RT our future content. SFIA Discord Server: / discord Listen or Download the audio of this episode from Soundcloud: Episode’s Audio-only version: / seeding-the-stars Episode’s Narration-only version: / seeding-the-stars-narration-only Credits: Seeding the Stars Episode 166, Season 4 E52 Writers: Isaac Arthur Editors: Alex Chamak A.T. Long Cooper de Ruiter D. Hemanshi Daniel McNamara Darius Said Edward Nardella Evan Schultheis Keith Blockus Mark Warburton Matthew Acker Safia Postgate Stuart Graham https://beyondnerva.wordpress.com Sigmund Kopperud Producer: Isaac Arthur Cover Artist: Jakub Grygier https://www.artstation.com/jakub_grygier Graphics Team: Bryan Versteeg http://spacehabs.com Darth Biomech https://www.artstation.com/darth_biomech Fishy Tree https://www.deviantart.com/fishytree/ Jarred Eagley Jeremy Jozwik https://www.artstation.com/zeuxis_of_… Justin Dixon LegionTech Studios Mihail Yordanov Sam McNamara Serigio Botero https://www.artstation.com/sboterod?f… SpaceResourcesCGI Audio Editing Eric Schneider Narrator: Isaac Arthur Music Manager: Luca DeRosa — [email protected] Music: Markus Junnikkala, “Plotting a Course” https://www.markusjunnikkala.com/ Paradox Interactive, Andreas Waldetoft, “Dark Minds” https://www.paradoxplaza.com Lombus, “Hydrogen Sonata” https://lombus.bandcamp.com Paradox Interactive, “In Search of Life” https://www.paradoxplaza.com Serena Elis, “Between the Space” / serenaelis Taras Harkavyi, “Alpha-and-…” https://www.discogs.com/artist/625697… Paradox Interactive, Andreas Waldetoft, “The Birth of a Star” https://www.paradoxplaza.com Ayreon, “The Theory of Everything, Part 1″ / @arjenalucassen. Facebook Group: / 1583992725237264 Reddit: / isaacarthur. Twitter: / isaac_a_arthur on Twitter and RT our future content. SFIA Discord Server: / discord.
High sensitivity radio observations have discovered a cloud of magnetized plasma in the Hydra galaxy cluster. The odd location and shape of this plasma defy all conventional explanations. Dubbed the Flying Fox based on its silhouette, this plasma will remain a mystery until additional observations can provide more insight.
A team led by Kohei Kurahara at the National Astronomical Observatory of Japan analyzed observations from the Giant Metrewave Radio Telescope (GMRT) targeting the Hydra galaxy cluster, located over 100 million light years away in the direction of the constellation Hydra.
By applying recent analysis techniques to the GMRT (Giant Metrewave Radio Telescope) data archive, the team was able to discover a cloud of magnetized plasma shaped like a flying fox which has never been reported before.
Science And Technology For Emerging National Security Threats — Dr. Sean Kirkpatrick, Ph.D. — Nonlinear Solutions LLC — Fmr. Director, All-domain Anomaly Resolution Office (AARO), United States Department of Defense.
Dr. Sean Kirkpatrick, Ph.D. is Owner of Nonlinear Solutions LLC., an advisory group that provides strategic scientific and intelligence consulting services, with a focus on emerging science and technology trends, to clients in both the defense and intelligence communities.
POTSDAM, Germany — One of the most lifeless places on Earth is actually hiding an underground biosphere teeming with microscopic life! Researchers have unearthed this amazing oasis under Chile’s Atacama Desert. The findings not only change our view of life on Earth, but they might prove that there is still life under the soil of dead alien worlds like Mars!
Despite being renowned as the driest desert on Earth, with some regions going decades or even centuries without a drop of rain, researchers from Germany discovered hardy communities of microorganisms that have managed to carve out habitats deep below the desert floor. Down here, totally isolated from the surface world, microscopic life finds a way to eke out an existence against all odds.
Study author Dirk Wagner and the team from the GFZ German Research Centre for Geosciences explain that they detected signs of potentially viable microbial ecosystems as far as 13 feet underground. This remarkable discovery is upending our understanding of desert biodiversity, demonstrating that life can persist in even the most extreme subterranean environments on Earth.
