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Archive for the ‘cosmology’ category: Page 125

May 13, 2023

First-of-its-kind measurement of the universe’s expansion rate weighs in on a longstanding debate

Posted by in category: cosmology

Thanks to data from a magnified, multiply imaged supernova, a team led by University of Minnesota Twin Cities researchers has successfully used a first-of-its-kind technique to measure the expansion rate of the universe. Their data provide insight into a longstanding debate in the field and could help scientists more accurately determine the universe’s age and better understand the cosmos.

The work is divided into two papers, respectively published in Science and The Astrophysical Journal.

In astronomy, there are two precise measurements of the expansion of the universe, also called the “Hubble constant.” One is calculated from nearby observations of supernovae, and the second uses the “,” or radiation that began to stream freely through the universe shortly after the Big Bang.

May 13, 2023

Photographer’s Incredible ‘GigaMoon’ Image is Made From 280,000 Photos

Posted by in category: cosmology

Astrophotographer Andrew McCarthy has captured a “GigaMoon” — a 1.3-gigapixel highly-detailed image of the Moon made from 280,000 photos.

It’s an image that McCarthy has wanted to capture for a long time, with multiple attempts thwarted by poor conditions.

May 13, 2023

‘Runaway black hole,’ or sneaky galaxy in disguise? Experts are conflicted

Posted by in categories: cosmology, physics

The object’s gravity and velocity, the study suggested, would have ignited the gas and left a blazing trail of stars in its wake. This exciting discovery would mark the first observation of a rogue supermassive black hole — objects that are theorized to roam the universe after being ejected from their host galaxy, possibly due to collisions with other black holes.

Now, new research hints at a more mundane explanation.

The new study, published in the journal Astronomy & Astrophysics (opens in new tab), suggests that the weirdly thin streak might simply be a flat galaxy viewed on its edge, like the rim of a plate. Unlike the Milky Way, this supposed galaxy would not have a bulge of stars at its center but would be totally flat — a relatively common type of galaxy called a thin or flat galaxy.

May 13, 2023

Black hole shreds star in a cosmic feeding frenzy that has astronomers thrilled

Posted by in category: cosmology

Lurking in the darkness of space, black holes are notorious for shredding stars that venture too close, and then gobbling them up. But astronomers have had only a rudimentary understanding of that dramatic process.

A new study sheds some light. Astronomers have spotted streams of star matter that came full circle around black holes and bumped into themselves. Such collisions were long theorized, but the new observations for the first time provide a direct look at the early stages of disk-forming around black holes.

May 13, 2023

To create a wormhole that doesn’t collapse, you need exotic matter

Posted by in category: cosmology

Making a wormhole that a human could theoretically travel through would require an upside-down universe and negative energy.

By Jon Cartwright

May 12, 2023

What If Humanity Lives In a Tegmark Multiverse? | Complete List with Levels 1 — 4 | Unveiled XL

Posted by in categories: cosmology, innovation

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May 12, 2023

Mirror-Image Supernova Yields Surprising Estimate of Cosmic Growth

Posted by in category: cosmology

A new way to gauge the universe’s expansion rate has delivered a confusing result that may conflict with previous related measurements.

May 11, 2023

Researchers find new approach to explore earliest universe dynamics with gravitational waves

Posted by in categories: cosmology, physics

Researchers have discovered a new generic production mechanism of gravitational waves generated by a phenomenon known as oscillons, which can originate in many cosmological theories from the fragmentation into solitonic “lumps” of the inflaton field that drove the early universe’s rapid expansion, reports a new study published in Physical Review Letters on May 2.

The results have set the stage for revealing exciting novel insights about the ’s earliest moments.

The inflationary period, which occurred just after the Big Bang, is believed to have caused the universe to expand exponentially. In many cosmological theories, the rapid expansion period is followed by the formation of oscillons.

May 9, 2023

Blue Origin Reveals MAJOR NEW Breakthrough On The Moon!

Posted by in categories: cosmology, internet, space travel

Last video: major new starship launch update!

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May 8, 2023

Astronomers spot a rogue supermassive black hole hurtling through space leaving star formation in its wake

Posted by in categories: cosmology, physics

I either think this has to do with some unknown physics problem like lack of some sorta gravity on spacetime fabric or it could be piloted by lifeforms as a black hole spaceship. Either way this could be addressed with a laser that could evaporate it back into light for instance a matter into light laser or put it back in place with a stasis field.


Supermassive black holes (SMBHs) lurk in the center of large galaxies like ours. From their commanding position in the galaxy’s heart, they feed on gas, dust, stars, and anything else that strays too close, growing more massive as time passes. But in rare circumstances, an SMBH can be forced out of its position and hurtle through space as a rogue SMBH.

In a new paper, researchers from Canada, Australia, and the U.S. present evidence of a rogue SMBH that’s tearing through space and interacting with the circumgalactic medium (CGM.) Along the way, the giant is creating and triggering .

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