Dark Matter Mapped: Webb's Unprecedented Universe Discovery - podcast episode cover

Dark Matter Mapped: Webb's Unprecedented Universe Discovery

Jan 27, 202616 minSeason 5Ep. 23
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Episode description

Welcome to Astronomy Daily! Join hosts Anna and Avery as they explore today's most fascinating space and astronomy stories.
IN THIS EPISODE:
🌌 NASA's Dark Matter Map
NASA's James Webb Space Telescope has created one of the most detailed dark matter maps ever produced, revealing the invisible scaffolding of the universe in unprecedented detail. Scientists mapped nearly 800,000 galaxies, showing how dark matter and regular matter have grown together throughout cosmic history - and how dark matter's influence may have been essential for creating the conditions necessary for life on Earth.
🚀 Weekly Launch Roundup
A busy week in orbital spaceflight with multiple missions planned from Florida, California, and New Zealand. SpaceX prepares to launch GPS III SV09 named after fallen Challenger astronaut Ellison Onizuka, while Rocket Lab readies its "Bridging the Swarm" mission carrying South Korea's NeonSat-1A satellite. Plus updates on multiple Starlink flights and possible Chinese launches.
🌙 Artemis II's Far Side Adventure
The Artemis II crew - Reid Wiseman, Victor Glover, Christina Hammock Koch, and Jeremy Hansen - are training to become the first humans to see parts of the Moon never before observed by human eyes. Learn about their planned three-hour observation session focusing on Mare Orientale and other hidden lunar features, and how their geology training in Iceland is preparing them for this historic mission.
🪐 Jupiter's Hidden Depths
NASA's Juno spacecraft continues to revolutionize our understanding of Jupiter, revealing that the planet's iconic cloud bands extend 1,900 miles below the surface. Discover recent findings about Jupiter's diluted core, mysterious green lightning flashes, and the remarkably persistent polar cyclones that form octagonal and pentagonal patterns at the planet's poles.
☀️ Antarctica's Exclusive Eclipse
Only about 16 people might witness one of 2026's most spectacular celestial events - a "ring of fire" annular solar eclipse crossing Antarctica on February 17th. Find out about the two research stations in the path of totality, the extreme conditions observers will face, and where else partial views of the eclipse will be visible.
🛸 Starship V3 Update
SpaceX's upgraded Starship rocket test has been rescheduled for mid-March following a November explosion during testing. Learn about the new capabilities of Starship V3, including plans to launch next-generation Starlink satellites and dock with other Starships in orbit - plus how Blue Origin's New Glenn is emerging as competition in the heavy-lift market.
EPISODE LINKS:
• NASA Dark Matter Discovery: https://www.jpl.nasa.gov/news/nasa-reveals-new-details-about-dark-matters-influence-on-universe/
• Launch Schedule Details: https://www.nasaspaceflight.com/2026/01/launch-roundup-012626/
• Artemis II Far Side Views: https://dailygalaxy.com/2026/01/artemis-first-humans-see-hidden-side-moon/
• Antarctica Eclipse Information: https://dailygalaxy.com/2026/01/2026-ring-of-fire-eclipse/
• Starship Development Update: https://techcrunch.com/2026/01/26/spacex-eyes-mid-march-for-first-test-of-upgraded-starship-rocket/
CONNECT WITH US:
🌐 Website: astronomydaily.io
📱 Twitter/X: @AstroDailyPod
📷 Instagram: @AstroDailyPod
📘 Facebook: @AstroDailyPod


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Transcript

Anna

Welcome to Astronomy Daily, your source for the latest space and astronomy news. I'm Anna.

Avery

And I'm avery. Today's Tuesday, January 27, 2026, and we've got some fascinating stories lined up for you.

Anna

We certainly do. On today's episode, we're diving into NASA's groundbreaking new Dark matter map, getting the latest updates on this week's orbital launch schedule, and learning about what the Artemis II crew might see on the far side of the Moon.

Avery

Plus, we'll explore stun new insights into Jupiter's complex cloud systems, find out about a rare solar eclipse that only a handful of people will witness, and get the latest on SpaceX's upgraded Starship development.

Anna

Let's get started.

Avery

Take it away, Anna.

Anna

Our top story today comes from NASA's Jet Propulsion Laboratory, where scientists have created one of the most detailed dark matter maps ever produced using data from the James Webb Space Telescope.

Avery

This is really exciting stuff, Anna. Uh, the map shows how dark matter, that invisible, ghostly material that makes up most of the universe's mass, overlaps and intertwines with regular matter like stars and galaxies.

Anna

Published Monday in Nature Astronomy, this map is twice as sharp as any previous dark matter map made by other observatories. Diana Skogni Aglio, the lead author and astrophysicist at jpl, described it as seeing the invisible scaffolding of the universe in stunning detail for the first time.

Avery

What's particularly fascinating is how the map confirms that dark matter and regular matter have essentially grown up together. Wherever you see a massive cluster of thousands of galaxies, there's an equally massive amount of dark matter in the same place. When you see strings of regular matter connecting clusters, dark matter strings are there, too.

Anna

The team used Webb's unprecedented sensitivity to observe nearly 800,000 galaxies in a region of SK about 2.5 times larger than the Full Moon. They detected dark matter by observing how its mass curves space itself, which bends light from distant galaxies as it travels to Earth.

Avery

Here's something to ponder. Without dark matter, we might not even be here. Dark matter began clumping together first in the early universe, and those clumps then pulled regular matter together, creating the conditions for stars and galaxies to form earlier than they would have otherwise.

Anna

That earlier star formation was crucial because those first generations of stars turned hydrogen and helium into the rich array of elements that now make up planets like Earth. So in a very real sense, dark matter influenced the creation of the elements necessary for life.

Avery

Looking ahead, the upcoming Nancy Grace Roman Space Telescope will map dark matter over an area 4,400 times bigger than this Webb study, though it won't match Webb's incredible resolution. For even more detailed looks, we'll have to wait for next generation telescopes like the proposed Habitable Worlds Observatory.

Anna

Fascinating research that's literally revealing the invisible foundation of our universe.

Avery

Moving on to this week's launch schedule, it's shaping up to be, uh, a busy last week of January with flights from Florida, California and New Zealand on the manifesto.

Anna

That's right, SpaceX is planning to close out the month with the GPS 3 SV09 mission along with up to three Starlink launches. The GPS launch is scheduled for late Monday evening from cape Canaveral.

Avery

The GPS 3 SV09 satellite, named Ellison Onisuka after one of the fallen Challenger astronauts, will be launched to medium Earth orbit. This spacecraft offers improved accuracy and jamming resistance over previous versions of gps.

Anna

Meanwhile, Rocket Labs ELECTRON is preparing for the Bridging the Swarm mission from New Zealand's Mahia Peninsula on Wednesday. This launch will carry South Korea's Neonsat 1 a observation satellite to sun synchronous orbit.

Avery

The Neonsat constellation is designed to provide near real time disaster monitoring capability for the Korean Peninsula. The 100 kilogram Neonsat 1A features a high resolution optical camera and will join an existing NEONSAT satellite already in orbit.

Anna

This miss already faced a couple of delays. It was originally scheduled to launch back in December, but was scrubbed after sensor issues during Countdown.

Avery

SpaceX also has multiple Starlink missions on the schedule this week from Both coasts, Group 1719 from Vandenberg Space Force Base in California on Thursday, and Group 6101 from Cape Canaveral later that same day.

Anna

And looking ahead to early February, the first Starlink mission of next month, Group 6 103, is currently scheduled for Sunday, February 1.

Avery

China also has two possible flights on the manifest a Chang Zhang 7A from Hainan island and a Jielong 3 from the South China Sea. Though neither has a confirmed launch date.

Anna

Yet, it's worth noting that China's year in spaceflight has already been eventful with two launch failures within 12 hours in mid January, so they may be proceeding cautiously with these upcoming missions. Okay, moving on, our next story takes us to preparations for NASA's Artemis 2 mission, where four astronauts are training to become the first humans to see parts of the moon that have remained hidden from view even during the Apollo missions.

Avery

The Artemis 2 crew Reid Wiseman, Victor Glover, Christina Hammock Coach, and Jeremy Hansen won't land on the lunar surface, but they'll fly around the far side of the Moon and potentially observe regions never before seen by human eyes.

Anna

Among the most significant targets is Mari oriental, a vast 600 mile wide impact basing that sits along the edge of the lunar far side. Its location makes it nearly impossible to view from Earth, despite its massive scale.

Avery

The crew will spend a dedicated three hour segment of their mission focusing on direct lunar observation. NASA exploration scientist Jacob Bleacher emphasizes that human vision can detect subtle surface differences, Variations in brightness or texture that indicate differences in rock composition and geological age.

Anna

What's fascinating is that the astronauts have been training extensively in geology, including simulated exercises in Iceland where they practiced identifying volcanic and impact related features in environments resembling the Moon.

Avery

The far side of the moon holds a geologic record less disturbed than the near side. While much of the near side is covered with maria, the vast plains of ancient lava that have erased older surface features, the far side remains heavily cratered and relatively intact.

Anna

Because of tidal locking, the moon always shows the same face to Earth. Until the Soviet Luna 3 mission in 1959, no one had any idea what the far side looked like. Even the Apollo missions only had brief views and poor lighting.

Avery

Artemis 2 breaks that pattern by taking advantage of a launch window and flight path that ensures better visibility of the hidden hemisphere. The mission is currently scheduled for no earlier than February 6, and astronaut Christina.

Anna

Koch noted that the mission may help shift public understanding away from the outdated phrase the dark side of the moon, which falsely implies the region lacks sunlight.

Avery

An exciting mission that will give us unprecedented views of lunar territory that remained largely mysterious for all of human history.

Anna

Now let's turn our attention to Jupiter, where NASA's Juno spacecraft continues to reveal the gas giant's secrets from beneath its dense cloud layers.

Avery

Juno has been orbiting Jupiter since 2016, peering through storms and cyclones to unveil the planet's hidden complexity. And recent observations are showing just how much more intricate Jupiter is than we ever imagined.

Anna

One of the most fundamental questions scientists have debated for decades is how deep Jupiter's distinctive cloud bands actually go. By measuring Jupiter's gravity field, Juno discovered that these belts and zones, which are alternating east and west flowing jet streams, extend about 1900 miles, or 3000 kilometers below the cloud tops.

Avery

That's incredible depth. And Juno's discoveries have completely upended our understanding of Jupiter's interior structure too. Scientists long thought Jupiter had a small solid core surrounded by hydrogen and helium. But Juno's data suggests the planet has a larger, more diluted core than previously believed.

Anna

The spacecraft has also provided the first detailed views of Jupiter's north pole. Revealing massive cyclonic storms arranged in fascinating eight storms in an octagonal pattern in the north and five in a pentagonal pattern in the south. These storms are extremely resilient and have persisted for years.

Avery

And here's something really intriguing. Juno recently captured images showing a mysterious green glow near Jupiter's north pole. The flash of light was traveling at breakneck speed, which makes capturing it even more remarkable.

Anna

Scientists believe this could be lightning, but Jupiter's lightning is vastly different from Earth's. It's caused by clouds containing ammonia water solution and can be much more powerful than terrestrial lightning.

Avery

Juno's mission has been extended multiple times and was scheduled to end in September 2025, but appears to still be operational, with no new end date being promoted. During this extended phase, the spacecraft is conducting close flybys of Jupiter's intriguing Galilean moons Ganymede, Europa and IO Eventually, Juno.

Anna

Will meet its end by burning up in Jupiter's atmosphere. But until then, it continues to revolutionize our understanding of the solar system's largest planet.

Avery

Our next story involves a celestial event that very few people will witness. A rare annular solar eclipse set to occur over one of the most remote places on Earth.

Anna

On February 17, 2026, a spectacular ring of fire eclipse will be visible from a narrow stretch of Antarctica. The phenomenon will only be fully visible from an uninhabited region of the continent, with just two research stations falling within the event's path.

Avery

The antumbral shadow of the Moon, the area where the full annular eclipse can be seen, will travel across a, uh, 26, 61 mile stretch of mainland Antarctica. Only two inhabited locations fall within this narrow Concordia Station, a AH French Italian base, and Mirny Station, operated by Russia.

Anna

At Concordia, annularity will last 2 minutes and 1 second with the sun positioned 5 degrees above the horizon. At Mirny, it will experience 1 minute and 52 seconds of annularity, with the sun slightly higher at 10 degrees.

Avery

Given the extreme location and limited infrastructure, eclipse meteorologist Jay Anderson noted that it's a challenge to reach, and neither of the two inhabited locations is set up to welcome Taurus.

Anna

However, a partial eclipse will be visible over a much larger region, including several Antarctic research bases, parts of southeastern Africa, the southern tip of South America, and stretches of the Pacific, Atlantic and Indian oceans.

Avery

For example, Poland's AB Dobrolansky station will see 92% of the sun covered, while McMurdo station in the US will see 86%. Even distant cities like Durban in South Africa will witness about 16% coverage.

Anna

Weather could be a significant factor, though mirny station averages 65% cloud cover in February, while Concordia has a clearer profile with about 35% coverage, and temperatures can drop as low as -112 degrees Fahrenheit.

Avery

Interestingly, the eclipse itself might improve viewing conditions. The sudden temperature drop from the eclipse can disrupt local cloud formation, potentially causing convective clouds to dissipate.

Anna

Though if you're one of the handful of researchers stationed in Antarctica next month, you might be in for a spectacular show, assuming the clouds cooperate and you can brave the extreme cold. And finally, in some late breaking news, we have an update on SpaceX's Starship development program.

Avery

According to a post from CEO Elon Musk, the delayed first test of SpaceX's upgraded Starship rocket, version 3, is now slated for mid March.

Anna

This third version of Starship is larger and more powerful than previous iterations. Crucially, SpaceX plans to use Starship V3 to launch its next generation Starlink satellites, which will be capable of faster data speeds but are heavier and larger.

Avery

It's also the first version designed to dock with other starships in Earth orbit, a capability the company needs to reach the Moon or Mars. This comes as SpaceX faces pressure from the Trump administration to return US astronauts to the lunar surface before the end of a second term.

Anna

SpaceX was making progress toward a launch of Starship V3 in late 2025, but in November, the booster stage suffered a major explosion during testing that blew out an entire side of the steel rocket.

Avery

The company said it was performing gas system pressure testing when the explosion happened, but hasn't offered a more detailed breakdown of what went wrong.

Anna

The second version of Starship was a mixed bag. The program successfully reached orbit, deployed dummy versions of next generation Starlink satellites, and caught multiple booster stages after they returned to the launch pad.

Avery

But Starship V2 also suffered several explosions and setbacks. Some resulted from SpaceX's developmental approach of pushing test vehicles to or past their limits. Others were more unexpected, like when a starship vehicle erupted in a massive fireball during ground testing last June.

Anna

Meanwhile, competition is emerging. Jeff Bezos's new Glenn rocket successfully launched for the first time in January 2025 and completed its first booster landing in November. Blue Origin is planning a third new Glenn launch in late February and ah.

Avery

Late last year, Blue Origin revealed it's developing a larger super heavy variant of new Glenn M, which more directly compare competes with starship.

Anna

So while SpaceX continues to dominate the global launch market, other players are starting to close the gap. It'll be interesting to see how the Starship V3 test goes in March, and.

Avery

That wraps up today's episode of Astronomy Daily.

Anna

Thanks for joining us for another journey through the cosmos. Remember to check out our website at astronomydaily IO for more space and astronomy news.

Avery

And don't forget to follow us on social media astrodaily Pod for updates between episodes.

Anna

Until next time, keep looking up.

Avery

Clear skies, everyone.

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