May help explain why we see so many of these monsters colliding.
Category: cosmology – Page 106
I found this on NewsBreak: Dark energy could be getting weaker, suggesting the universe will end in a ‘Big Crunch’
The first year of Dark Energy Spectroscopic Instrument (DESI) data seems to show that dark energy is weakening over time, possibly the biggest cosmological discovery for 25 years.
I found this on NewsBreak: Unraveling Dark Energy and Cosmic Expansion With an 11-Ton Time Machine.
I found this on NewsBreak: Most massive stellar black hole in the Milky Way discovered ‘extremely close’ to Earth.
Astronomers have found the most massive stellar-mass black hole ever discovered in our galaxy — and it’s lurking “extremely close” to Earth, according to new research.
The black hole, named Gaia BH3, is 33 times more massive than our sun. Cygnus X-1, the next-biggest stellar black hole known in our galaxy, weighs only 21 solar masses. The newfound black hole is located roughly 2,000 light-years away in the constellation Aquila, making it the second-closest known black hole to Earth.
The researchers published their findings April 16 in the journal Astronomy and Astrophysics.
A number of high-profile astronomers are set to convene at London’s Royal Society to question some of the most fundamental aspects of our understanding of the universe.
As The Guardian reports, the luminaries of cosmology will be re-examining some basic assumptions about the universe — right down to the over-a-century-old theory that it’s expanding at a constant rate.
“We are, in cosmology, using a model that was first formulated in 1922,” coorganizer and Oxford cosmologist Subir Sarkar told the newspaper, in an apparent reference to the year Russian astronomer Alexander Friedmann outlined the possibility of cosmic expansion based on Einstein’s general theory of relativity.
Astronomers have identified the most massive stellar black hole yet discovered in the Milky Way galaxy. This black hole was spotted in data from the European Space Agency’s Gaia mission because it imposes an odd ‘wobbling’ motion on the companion star orbiting it. Data from the European Southern Observatory’s Very Large Telescope (ESO’s VLT) and other ground-based observatories were used to verify the mass of the black hole, putting it at an impressive 33 times that of the sun.
Gateways between stars, wormholes through the fabric of reality, but could these be real, and if so, what would the civilizations using them be like?
Watch my exclusive video Galactic Beacons: https://nebula.tv/videos/isaacarthur–…
Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur.
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…
Facebook Group: / 1583992725237264
Reddit: / isaacarthur.
Twitter: / isaac_a_arthur on Twitter and RT our future content.
SFIA Discord Server: / discord.
Credits:
Stargates.
Episode 442a; April 14, 2024
Produced, Written \& Narrated by: Isaac Arthur.
Editors: donagh broderick. merv johnson II
Graphics:
Ken York.
Jeremy Jozwik.
Sergio Botero.
Music Courtesy of.
Warp Drives: New Simulations
Posted in cosmology, mathematics, physics, space travel
Learn more from a science course on Brilliant! First 30 days are free and 20% off the annual premium subscription when you use our link ➜ https://brilliant.org/sabine.
Hyperjumps, wormholes, and warp drives sound like science fiction, but they’re actually based on real science! Though I believe out of the three, warp drives are the most plausible. The math seems to agree. Today I want to tell you about a new way of analysing and visualizing warp drives.
Code: https://github.com/pbbp0904/WarpFactory.
🤓 Check out my new quiz app ➜ http://quizwithit.com/
💌 Support me on Donatebox ➜ https://donorbox.org/swtg.
📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/
👉 Transcript with links to references on Patreon ➜ / sabine.
📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle…
👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl…
🔗 Join this channel to get access to perks ➜
/ @sabinehossenfelder.
🖼️ On instagram ➜ / sciencewtg.
#science #sciencenews #warpdrives #physics
MYSTERIOUS signals are being detected coming from a star that has been radio silent for over a decade, according to scientists.
The radio signals are very powerful and their sudden appearance has baffled experts.
According to Live Science, the strange star is a magnetar that suddenly became very active again in 2018.
The brightest burst of light ever recorded was caused by a supernova, but that prompts new questions.