A mathematical shortcut for analyzing black hole collisions works even in cases where it shouldn’t. As astronomers use it to search for new classes of hidden black holes, others wonder: Why?
Category: cosmology – Page 264
The Oldest Fossil Radio Galaxy Discovered Yet Has Been Found Hiding in a Cluster
The oldest radio galaxy yet discovered is hidden in a cluster.
Astronomers claim to have found the oldest fossil radio galaxy yet discovered, hiding in a cluster. The brightest galaxy in the cluster erupted as a result of supermassive black hole activity, blowing massive bubbles of radio light into space, according to a report published by ScienceAlert.
“These newly discovered bubbles — known as radio lobes, or a radio galaxy — are the oldest of their kind we’ve ever seen,” claimed the astronomers’ team led by Surajit Paul and Savitribai Phule from Pune University in India.
A second team of astronomers led by Gopal Krishna of the University of Mumbai also discovered a pair of younger lobes that are linked to the same parent galaxy.
If we had been around and able to see into the heart of galaxy cluster Abell 980 around 260 million years ago, we may have seen something very spectacular indeed.
The brightest galaxy in the cluster erupted, the result of activity from its supermassive black hole, an event that would go on to blow massive bubbles emitting radio light out into space.
What is a wormhole?
Are you curious?
Imagine two towns on two opposite sides of a mountain. People from these towns would probably have to travel all the way around the mountain to visit one another. But, if they wanted to get there faster, they could dig a tunnel straight through the mountain to create a shortcut. That’s the idea behind a wormhole.
A wormhole is like a tunnel between two distant points in our universe that cuts the travel time from one point to the other. Instead of traveling for many millions of years from one galaxy to another, under the right conditions, one could theoretically use a wormhole to cut the travel time down to hours or minutes.
You’ll often see wormholes in science fiction as a way to travel across the Galaxy.
Wormholes explained: How these space-time shortcuts act like time machines
Imagine two towns on two opposite sides of a mountain. People from these towns would probably have to travel all the way around the mountain to visit one another. But, if they wanted to get there faster, they could dig a tunnel straight through the mountain to create a shortcut. That’s the idea behind a wormhole.
A wormhole is like a tunnel between two distant points in our universe that cuts the travel time from one point to the other. Instead of traveling for many millions of years from one galaxy to another, under the right conditions, one could theoretically use a wormhole to cut the travel time down to hours or minutes.
Because wormholes represent shortcuts through space-time, they could even act like time machines. You might emerge from one end of a wormhole at a time earlier than when you entered its other end.
TIMELAPSE OF FUTURE SPACECRAFT: 2025 — 3000+
A sci fi documentary looking at a timelapse of future spacecraft. From the future of AI spaceships, Starship orbital refuelling, and space station worlds, to Mars colonization and in-space manufacturing.
Other topics include: SpaceX and the launch of their fleet of Starships — waiting in parking orbit around Earth, ready for the launch window to open to Mars. NASA and the mission of landing on the Martian Moon Phobos. Advances in spacecraft technology for protecting humans during multi-year interstellar journeys.
While the year 2100 and beyond, brings wormhole exploration, artificial intelligence based planets, and the possible need for a stellar engine — to protect the solar system.
Main narration by: Alexander Masters (www.alexander-masters.com)
Starship Artwork – used with permission and licensed from:
Erc X: https://twitter.com/ErcXspace.
Caspar Stanley: https://twitter.com/Caspar_Stanley.
Alex Svan: https://twitter.com/AlexSvanArt.
Additional footage sourced from: SpaceX, NASA, ESO, Ken Crawford, Nick Risinger, Northrop Grumman, SpinLaunch, Redwire Space.
Quantum heat pump: A new measuring tool for physicists
Physicists from TU Delft, ETH Zürich and the University of Tübingen have built a quantum scale heat pump made from particles of light. This device brings scientists closer to the quantum limit of measuring radio frequency signals, which may be useful in the hunt for dark matter. Their work will be published as an open-access article in Science Advances on Aug. 26.
If you bring two objects of different temperature together, such as putting a warm bottle of white wine into a cold chill pack, heat usually flows in one direction, from hot (the wine) to cold (the chill pack). And if you wait long enough, the two will both reach the same temperature, a process known in physics as reaching equilibrium: a balance between the heat flow one way and the other.
If you are willing to do some work, you can break this balance and cause heat to flow in the “wrong” way. This is the principle used in your refrigerator to keep your food cold, and in efficient heat pumps that can steal heat from the cold air outside to warm your house. In their publication, Gary Steele and his co-authors demonstrate a quantum analog of a heat pump, causing the elementary quantum particles of light, known as photons, to move “against the flow” from a hot object to a cold one.
Behold! Telescope image captures a dusty dance from merging galaxies
NGC 7,727 will someday merge with a nearby galaxy — and intertwine their black holes in the process.
The galaxy’s violent past is written into its shape and composition, and the details are visible via telescope. This week, the European Southern Observatory released a new image of NGC 7,727 taken with the ground-based Very Large Telescope (VLT).
Captured in visible light with the VLT’s FOcal Reducer and low dispersion Spectrograph 2 instrument, streams of dust kicked up by the two merging galaxies can be seen spiraling around NGC 7727. Bright blue and purple clusters of stars dot the inner arms of the galaxy.
And its lopsided shape is no coincidence: as its two parent galaxies spun dusty circles around each other, the newly-formed NGC 7,727 came into being in a rather uneven way.
Water World Found? Just 100 Light Years Away! Prospects for Life Profound
Have we found a water planet with deep oceans nearby (in astronomical terms)? Could water worlds be plentiful near red dwarf stars? Would life have a better chance on such worlds? Listen to see what we know so far about this and planet TOI-1452 b.
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For gardening in your Lunar habitat Galactic Gregs has teamed up with True Leaf Market to bring you a great selection of seed for your planting. Check it out: http://www.pntrac.com/t/TUJGRklGSkJGTU1IS0hCRkpIRk1K
Awesome deals for long term food supplies for those long missions to deep space (or prepping in case your spaceship crashes: See the Special Deals at My Patriot Supply: www.PrepWithGreg.com.
SLS Artemis I Rocket Overview
A tour of the Space Launch System (SLS) Artemis-I Rocket.
Worm-hole generators by the pound mass: https://greengregs.com/
For gardening in your Lunar habitat Galactic Gregs has teamed up with True Leaf Market to bring you a great selection of seed for your planting. Check it out: http://www.pntrac.com/t/TUJGRklGSkJGTU1IS0hCRkpIRk1K
Awesome deals for long term food supplies for those long missions to deep space (or prepping in case your spaceship crashes: See the Special Deals at My Patriot Supply: www.PrepWithGreg.com.