Perseverance just made its biggest find. Ever.
On the surface of Mars. Specifically, in the dried-out bed of what was once a deep lake at Jezero crater. NASA’s rover picked up the highest concentration of organic molecules anyone has ever seen there. Last year, they found a rock with patterns that looked suspiciously like microbial traces. Now, the complex carbon-based data is widespread across the mudstones. It suggests fossilized microbes might have been living it up back in the day. A tantalizing step. Or maybe just chemistry playing tricks. Hard to say for sure yet.
Look up instead. The James Webb Space Telescope caught early galaxies living fast and dying young. It’s a grim preview, possibly, for our own Milky Way. Meanwhile, Webb also snagged the birth of a star 1,280 light years away in Orion. Euclid took the best photo of our home galaxy to date. Busy week.
The Weird Cousin
Homo naledi. You know this hominin? Small brain, big secrets.
Found in a South African cave way back in 2013. They walked upright, lived around 300k years ago, and probably used fire. Maybe even buried their dead. We thought we had them figured out.
Nope.
Archaeologists checked the enamel on nearly two dozen skeletons from that same cave. DNA analysis came back. Every single skeleton. Female. Not one male in sight.
“Weird result from an already weird hominim,” says Elizabeth Sawchuk. She wasn’t on the study but knows the history. It just adds another layer to the mystery. Who were these people? Why only females? The cave doesn’t give it up easily.
Other news in the bones: Early Homo sapiens might have hung out in rainforests. That changes everything about where we thought we came from. And the last Neanderthals? They weren’t inbreeding into extinction. They were actually quite diverse.
Ancient Roads and Modern Physics
How did the Romans get straight?
Not laser-straight. Not GPS-straight. Just straight. Across empires. For thousands of miles. Before surveyors, before lasers. It remains one of those little mysteries that sits in your head while you walk down a sidewalk. They just did it. Engineering brute force mixed with genius geometry.
Closer to home: Water is weird.
We drink it. It falls from the sky. Ice floats, which is already unusual for a liquid. Now scientists think water is actually two different liquids. Dense stuff and less dense stuff. Switching places constantly. Like a molecular party nobody invited you to.
AI helped prove it. So, go ahead. Sip your H2O knowing it’s secretly double-agents in a cup.
Water isn’t just a liquid. It’s a shifting battlefield of density.
The Big Picture
China is thirsty. Northern cities have 1/74th of the water per person that Americans do. Yet the south flows with some of Asia’s biggest rivers. Glaciers wait in the west.
The solution? Engineering on a god complex.
The world’s largest water diversion project moves water from the Yangtse north. Canals, pipes, pumps. Thousands of miles of infrastructure moving the sky into a bucket. That wasn’t enough. They are building a third route now. Western route. More dangerous. More ambitious.
They are also building the world’s biggest dam in Tibet. An earthquake zone. And working on a permanent “sky river.” Because why stop when the physics works?
El Niño is Back
Watch the ocean.
A massive Kelvin wave is streaking across the Pacific. Warm water. Hundreds of miles long. It signals a strong El Niño. Winds near the equator flipped direction, pushing that heat east toward South America.
NASA’s Sentinel-6 satellite saw it all. Radar scans showing sea level changes caused by hot water expanding. The heat builds up. The cold can’t rise to replace it. Disruption incoming.
Also this week:
– Bemotrizinol sunscreen gets US approval. Been popular elsewhere for ages.
– Cheap AI worm spreading without humans. You can’t patch this out.
– Drought might stop US lithium mining. Reliance on foreign imports goes up.
Pick a puzzle. Read an opinion piece. Ignore the worm. Or don’t. Up to you. 🧩
