Welcome to Peer Review'd, the podcast where we dig into the latest discoveries from the world of science and bring them to you straight from the research floor. I'm your host, and today we have an absolutely packed episode. From the far side of the Moon to the deep sea, from the Big Bang to your bathroom mirror, science has been busy. Let's dive in.

We're starting off-world today, because space has been delivering some genuinely jaw-dropping headlines.

First up, the Moon's mysterious far side just got a little less mysterious. Scientists analyzing samples returned by China's Chang'e-6 mission found unusual potassium isotope signatures that point to something extraordinary. These chemical fingerprints suggest the region was shaped by one of the most violent impacts in the Moon's history — the collision that created the South Pole–Aitken Basin, one of the largest and oldest impact craters in the entire solar system. The extreme conditions from that ancient impact appear to have chemically transformed the lunar far side in ways we're only now beginning to understand. It's a reminder that the scars of the solar system's violent past are written in the chemistry of rocks, if you know how to read them.

Staying in space, astronomers have spotted something they say they have never seen before. Using the European Southern Observatory's Very Large Telescope, researchers captured a mysterious bow shock — essentially a wave of compressed material — forming around a white dwarf star called RXJ0528+2838. White dwarfs are the dense remnants left behind after stars like our Sun exhaust their fuel and die. Bow shocks aren't unheard of, but this one is surprising scientists with its structure and behavior. It's challenging what we think we know about how dead stars interact with the gas and dust around them.

And if that wasn't enough cosmic news, astronomers just traced the brightest fast radio burst ever detected back to a nearby galaxy. These fast radio bursts, or FRBs, are intense flashes of radio energy that last only a fraction of a second. This one, nicknamed RBFLOAT, briefly outshone every other radio source in its entire galaxy. A network of new CHIME Outrigger telescopes pinpointed its location, and the James Webb Space Telescope followed up with a faint infrared signal at the same spot. What makes this burst especially puzzling is that it shows no signs of repeating, which could challenge leading theories about what causes these enigmatic cosmic flashes.

Now let's hop over to Mars, because the Red Planet has been generating quite a bit of buzz lately.

New research suggests Mars may have stayed habitable far longer than scientists previously thought. Ancient sand dunes inside Gale Crater appear to have been soaked by underground water billions of years ago, leaving behind minerals capable of preserving signs of life. Even after surface water vanished, subsurface flows may have created sheltered environments where microbes could potentially have survived. That's a significant finding for the ongoing search for past life on Mars.

Meanwhile, NASA's Curiosity rover is investigating strange spiderweb-like ridges on the Martian surface, known as boxwork formations. These likely formed when groundwater flowed through rock cracks, depositing minerals that hardened into ridges while the surrounding material eroded away. New chemical analyses are confirming the water-related chemistry locked inside these bizarre structures.

And zooming out even further, NASA's twin-spacecraft ESCAPADE mission is gearing up to study how the solar wind strips away Mars' atmosphere in real time. Mars wasn't always a frozen desert — it once had a thicker atmosphere and liquid water. Understanding how the Sun gradually eroded that atmosphere could not only tell us how Mars lost its habitability but also help us plan for future crewed missions there.

Back on Earth — and in Earth's history — there are some fascinating discoveries to unpack.

Physicists at CERN have gathered new evidence confirming that the universe's earliest matter, the so-called primordial soup from just after the Big Bang, really did flow like a liquid. In those first trillionths of a second, the universe was a searing plasma of quarks and gluons at temperatures of a trillion degrees. New particle collision data is helping scientists model how that plasma moved, and it turns out it behaved less like a gas and more like a near-perfect liquid. Mind-bending stuff.

On a related cosmic scale, researchers may have finally cracked a seventy-year-old mystery about the universe's magnetic fields. Planets, stars, and galaxies all generate magnetic fields, but explaining how turbulent plasma produces those vast, ordered structures has stumped scientists for decades. A newly identified mechanism involving turbulent plasma dynamics could be the long-sought answer.

And for history buffs with a taste for astronomy, scientists have solved a 2,700-year-old eclipse mystery using an ancient Chinese record of what may be the earliest precisely dated total solar eclipse. By combining historical geography with modern astronomical modeling, researchers refined data on Earth's rotation and found evidence of rising solar activity after a prolonged quiet period. Ancient texts as scientific instruments — what a concept.

Closer to home, let's talk about some discoveries that hit a bit more personally.

Researchers at the Weizmann Institute are challenging decades of aging research with a striking finding: genetics may account for roughly fifty percent of how long a person lives — more than double what previous estimates suggested. That means your genes play a much larger role in your lifespan than scientists once believed, and it could reshape how we study longevity.

In medical biology, a protein linked to ALS and dementia called TDP-43 has turned out to be even more important than previously thought. Researchers found it controls a key DNA repair process, but when levels go out of balance, the repair system can spiral out of control, harming neurons and destabilizing DNA. High levels of the protein were also linked to increased mutation rates in cancer. This discovery places TDP-43 at the crossroads of neurodegeneration and cancer biology, which could open up new treatment avenues.

And here's one that might make you look at your shampoo bottle differently. Scientists have overturned a long-held textbook assumption about how hair grows. Rather than being pushed upward from the root, new research using advanced 3D imaging shows that cells inside the follicle actually pull the hair upward — like a microscopic motor generating a spiral motion. It could change how researchers approach hair loss treatments.

On the environmental front, scientists studying crops irrigated with treated wastewater found that trace pharmaceuticals — including antidepressants and seizure medications — tend to accumulate in plant leaves. The good news is that the edible parts of tomatoes and carrots had much lower levels. But as wastewater reuse becomes more common around the world, understanding how crops process these contaminants is increasingly important.

And speaking of things we might be ignoring at our peril — a major study warns that nearly ninety percent of North America's insect and arachnid species have no conservation status at all. Spiders, beetles, moths — most of them are flying or crawling under the radar of official protection systems. Scientists are urging better monitoring and protection for these creatures, which are absolutely essential to healthy ecosystems.

Finally, a few quick hits from the frontiers of science. Researchers may have found a missing piece in the origin of life puzzle — hydrothermal vents on the deep ocean floor may have hosted critical chemical reactions that helped spark life on Earth billions of years ago. Deep-sea proteins found near volcanic vents are proving remarkably tough and could improve rapid diagnostic tests for infectious diseases. A donut-shaped bacterial protein called MraZ has been caught in the act of bending and partially breaking apart to trigger cell division — captured in stunning detail using cryo-electron microscopy. Scientists in Helsinki discovered that plant mitochondria can actually pull oxygen away from chloroplasts, a previously unknown mechanism that may help plants handle stress. And ancient DNA from beneath the North Sea suggests that the lost landmass known as Doggerland was covered in temperate forests far earlier than anyone expected.

That is a lot of science for one Sunday, and honestly, we wouldn't have it any other way. From the Big Bang's liquid beginnings to the hidden motors growing your hair, the universe keeps finding new ways to surprise us.

That's it for today's episode of Peer Review'd. If something sparked your curiosity, follow the links in our show notes to dig deeper. Science is always better when you're in on the conversation. Until next time, stay curious.