spacetimewithstuartgary

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New SpaceTime out Friday

SpaceTime 20250801 Series 28 Episode 92

Searching for life’s home on Mars

A new study has been looking at thick layers of clay on the surface of the red planet Mars which may have been a stable place for ancient life.

Rare distant object found in perfect sync with Neptune

Astronomers have discovered a rare object far beyond Neptune which is moving in rhythm with the ice giant.

Mapping the Milky Way’s Sulphur

A new study has provided astronomers with an unprecedented tally of elemental sulphur spread between the stars in the Milky Way Galaxy.

August SkyWatch

The red supergiant Antares, the second nearest star system to the Sun Barnard’s Star, and the annual Perseids meteor shower are among the highlights of the August night skies on SkyWatch.

SpaceTime covers the latest news in astronomy & space sciences.

The show is available every Monday, Wednesday and Friday through your favourite podcast download provider or from www.spacetimewithstuartgary.com

SpaceTime is also broadcast through the National Science Foundation on Science Zone Radio and on both i-heart Radio and Tune-In Radio.

SpaceTime daily news blog: http://spacetimewithstuartgary.tumblr.com/

SpaceTime facebook: www.facebook.com/spacetimewithstuartgary

SpaceTime Instagram @spacetimewithstuartgary

SpaceTime twitter feed @stuartgary

SpaceTime YouTube: @SpaceTimewithStuartGary

SpaceTime -- A brief history

SpaceTime is Australia’s most popular and respected astronomy and space science news program – averaging over two million downloads every year. We’re also number five in the United States.  The show reports on the latest stories and discoveries making news in astronomy, space flight, and science.  SpaceTime features weekly interviews with leading Australian scientists about their research.  The show began life in 1995 as ‘StarStuff’ on the Australian Broadcasting Corporation’s (ABC) NewsRadio network.  Award winning investigative reporter Stuart Gary created the program during more than fifteen years as NewsRadio’s evening anchor and Science Editor.  Gary’s always loved science. He was the dorky school kid who spent his weekends at the Australian Museum. Gary studied astronomy at university and was invited to undertake a PHD in astrophysics, but instead focused on a career in journalism and radio broadcasting. His radio career stretches back some 34 years including 26 at the ABC. Gary’s first gigs were spent as an announcer and music DJ in commercial radio, before becoming a journalist, and eventually joining ABC News and Current Affairs. He was part of the team that set up ABC NewsRadio and became one of its first on air presenters. When asked to put his science background to use, Gary was appointed Science Editor and quickly developed the StarStuff Astronomy show, which he wrote, produced, and hosted. The program proved extremely popular, consistently achieving 9 per cent of the national Australian radio audience -- based on the ABC’s Nielsen ratings survey figures for the five major Australian metro markets: Sydney, Melbourne, Brisbane, Adelaide, and Perth. That compares to the ABC’s overall radio listenership of 5.6 per cent. The StarStuff podcast was published on line by ABC Science -- achieving over 1.3 million downloads annually.  However, after some 20 years, the show finally wrapped up in December 2015 following ABC funding cuts, and a redirection of available finances to increase sports and horse racing coverage.  Rather than continue with the ABC, Gary resigned so that he could keep the show going independently.  StarStuff was rebranded as “SpaceTime”, with the first episode broadcast in February 2016.  Over the years, SpaceTime has grown, more than doubling its former ABC audience numbers and expanding to include new segments such as the Science Report -- which provides a wrap of general science news, weekly skeptical science features, special reports looking at the latest computer and technology news, and Skywatch – which provides a monthly guide to the night skies. The show is published three times a week (every Monday, Wednesday and Friday) and it’s available from the United States National Science Foundation on Science Zone Radio, and through both i-heart Radio and Tune-In Radio.

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The Fornax Cluster of Galaxies

Credits: Marco Lorenzi

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“naaaakbaaaa”

okay i have some “nakba” content. ready?

anyway lmao

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Spent the morning at KSC, and got to hang out with some of my favorite vehicles! The Gemini Titan was used throughout the Gemini program to propel two-man missions into space, creating the foundation of knowledge we would use throughout the Apollo program. And I was so excited, they have Artemis II patches there now! So I had to take a picture with it beside the Orion capsule at Gateway. This Orion was launched back in 2014 aboard a Delta IV Heavy on the Exploration Flight Test 1, a proving ground for the Orion capsule for use during the Artemis program.

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Sombraro galaxy, as seen with the JWST mid-infrared instrument.

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IS OUR UNIVERSE INSIDE A BLACK HOLE??

Blog#527

Saturday, August 2nd, 2025

Welcome back,

Without a doubt, since its launch, the James Webb Space Telescope (JWST) has revolutionized our view of the early universe, but its new findings could put astronomers in a spin. In fact, it could tell us something profound about the birth of the universe by possibly hinting that everything we see around us is sealed within a black hole.

The $10 billion telescope, which began observing the cosmos in the Summer of 2022, has found that the vast majority of deep space and, thus the early galaxies it has so far observed, are rotating in the same direction. While around two-thirds of galaxies spin clockwise, the other third rotates counter-clockwise.

In a random universe, scientists would expect to find 50% of galaxies rotating one way, while the other 50% rotate the other way. This new research suggests there is a preferred direction for galactic rotation.

The observations of 263 galaxies that revealed this strangely coordinated cosmic dance was collected as part of the James Webb Space Telescope Advanced Deep Extragalactic Survey, or "JADES."

"It is still not clear what causes this to happen, but there are two primary possible explanations," team leader Lior Shamir, associate professor of computer science at the Carl R. Ice College of Engineering, said in a statement. "One explanation is that the universe was born rotating. That explanation agrees with theories such as black hole cosmology, which postulates that the entire universe is the interior of a black hole.

"But if the universe was indeed born rotating, it means that the existing theories about the cosmos are incomplete."

Black hole cosmology, also known as "Schwarzschild cosmology," suggests that our observable universe might be the interior of a black hole itself within a larger parent universe.

The idea was first introduced by theoretical physicist Raj Kumar Pathria and by mathematician I. J. Good. It presents the idea that the "Schwarzchild radius," better known as the "event horizon," (the boundary from within which nothing can escape a black hole, not even light) is also the horizon of the visible universe.

This has another implication; each and every black hole in our universe could be the doorway to another "baby universe." These universes would be unobservable to us because they are also behind an event horizon, a one-way light-trapping point of no return from which light cannot escape, meaning information can never travel from the interior of a black hole to an external observer.

This is a theory that has been championed by Polish theoretical physicist Nikodem Poplawski of the University of New Haven.

Black holes are born when the core of a massive star collapses. At its heart is matter with a density that far exceeds anything in the known universe.

In Poplawski's theory, eventually, the coupling between torsion, the twisting and turning of matter, and spin becomes very strong and prevents the matter from compressing indefinitely to a singularity.

"The matter instead reaches a state of finite, extremely large density, stops collapsing, undergoes a bounce like a compressed spring, and starts rapidly expanding," Poplawski explained to Space.com.

"Extremely strong gravitational forces near this state cause an intense particle production, increasing the mass inside a black hole by many orders of magnitude and strengthening gravitational repulsion that powers the bounce."

The scientist continued by adding that rapid recoil after such a big bounce could be what has led to our expanding universe, an event we now refer to as the Big Bang.

Originally published on https://www.space.com

COMING UP!!

(Wednesday, August 6th, 2025)

"IS LIFE POSSIBLE INSIDE A BLACK HOLE??"

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"Astronaut James B. Irwin, lunar module pilot, gives a military salute while standing beside the deployed United States flag during the Apollo 15 lunar surface Extravehicular Activity (EVA) at the Hadley-Apennine landing site. The flag was deployed toward the end of EVA-2 (start of EVA-3). The Lunar Module (LM) "Falcon" is in the center. On the right is the Lunar Roving Vehicle (LRV). This view is looking almost due south. Hadley Delta in the background rises approximately 4,000 meters (about 13,124 feet) above the plain. The base of the mountain is approximately 5 kilometers (about 3 statute miles) away.

This photograph was taken by astronaut David R. Scott, Apollo 15 commander."

Date: August 2, 1971

NASA ID: AS15-88-11866

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yoseph has more backbone than most world leaders combined.

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A Giant Starspot on HD 12545

Credits: K. Strassmeier, U. Wien, Coude Feed Telescope, AURA, NOAO, NSF

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Astronomy Picture of the Day

2005 August 9

The Belt of Venus over Elwood Beach

Credit & Copyright: Russell Cockman

Explanation: Although you've surely seen it, you might not have noticed it. During a cloudless twilight, just before sunrise or after sunset, part of the atmosphere above the horizon appears slightly off-color, slightly pink. Called the Belt of Venus, this off-color band between the dark eclipsed sky and the blue sky can be seen in nearly every direction including that opposite the Sun. Straight above, blue sky is normal sunlight reflecting off the atmosphere. In the Belt of Venus, however, the atmosphere reflects light from the setting (or rising) Sun which appears more red. The Belt of Venus can be seen from any location with a clear horizon. Pictured above, the Belt of Venus was photographed behind Elwood Beach in Melbourne, Australia. The belt is frequently caught by accident in other photographs.

Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)

NASA Official: Jay Norris.

A service of: EUD at NASA / GSFC

& Michigan Tech. U.

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also i’ve talked about the class disparity in gaza before and how anyone who’s actually hungry is a propaganda tool, that hamas is stealing aid etc, but after seeing rom today, i’m going to say this and i dont care how little anyone here will like it:

if starvation was an actual widespread issue in gaza, someone would have taken up the offer of millions and escape to give the location of even ONE hostage. they have phones and they have power, we see that every single day. they get calls and texts to warn about strikes and relocations away from war zones. they’re, in the words of pro pals, “livestreaming a ‘genocide’.” so?? call the fucking number.

and yeah i’m aware calling comes with risks. i actually know what happens to gazans who are accused of “colluding” with israel. but are you trying to tell me starving people wouldn’t take that risk? or that many gazans don’t know where our hostages are?

please. someone would have taken the offer at least to feed their kids. but notice that no one has? the only person who has helped locate the corpses of our people in gaza and even MENTIONED the hostages is abu shabab and he’s demonized by media outlets that show pictures of children with DISEASES to try to prove hunger is an actual widespread issue. (if it was btw, they wouldnt have to go very far or get kids with horrible diseases to prove their point, and the adults would look like rom braslavski. the media also wouldnt have started famine allegations two days after hamas started the war, but lmao whatever).

the people being tortured and forcibly starved in actual concentration camp conditions are the israeli hostages. you want the war to end? LET THEM GO.