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The universe in radio color, a chemical frontier nobody's mapped, and ice that isn't waiting for a deal
The Point by Modern Sciences - July 1, 2026
Don Smith
July 01, 2026
By The Modern Sciences Team | July 1, 2026 |
Welcome to July, Cultivators of Curiosity!
Welcome back to The Point by Modern Sciences! This 25th issue travels from the outer reaches of the galaxy to the interior of a chemistry lab to the negotiating rooms of a global climate summit—and somehow all three feel connected.
We have a new map of the Milky Way that took a million supercomputer hours to build and is already rewriting what we know about how stars are born and die. We have a question about chemistry that will make your head spin in the best way possible. And we have a group of scientists who study ice for a living, trying very hard to get the rest of the world to look at what they are seeing. Pour something warm. This one goes wide.
SPACE
New images reveal the Milky Way’s stunning galactic plane in more detail than ever before
Astronomers have produced the most detailed low-frequency radio map of the Milky Way ever created, combining thousands of observations from Australia's Murchison Widefield Array into a single sweeping mosaic. The resulting image covers 95% of the galaxy visible from the southern hemisphere, color-coding different cosmic phenomena—from dying stars to stellar nurseries—in ways never seen before.
The Point:
A new imaging technique has produced the sharpest low-frequency radio portrait of the Milky Way to date: By combining data from two separate surveys of the southern sky and correcting for ionospheric distortions using image domain gridding, astronomers created a mosaic covering 95% of the galaxy that captures both sweeping structure and fine detail for the first time simultaneously.
Radio color transforms the galaxy from a blur of light into a readable map of cosmic events: Orange signals the remains of dead stars, blue marks where new ones are being born, and the broad frequency range allows scientists to distinguish between emission driven by magnetic fields and emission from hot gas — giving the image scientific utility well beyond its visual beauty.
The map sets a benchmark that will stand until the next generation of radio telescopes arrives: Currently the most sensitive wide-area low-frequency radio image of the Milky Way ever made, it represents a preview of what the SKA-Low telescope will eventually reveal at thousands of times greater sensitivity and resolution.
MATH AND THE SCIENCES
Only 1% of chemical compounds have been discovered – here’s how we search for others that could change the world
Scientists have identified only around 1% of all possible chemical compounds in the universe, yet the ones we have found have already transformed medicine, materials science, and industry. From penicillin discovered by accident in a petri dish to compounds with nearly three million atoms, the search for new chemistry is simultaneously one of the most overwhelming and most promising frontiers in science.
The Point:
Only 1% of all possible chemical compounds have ever been found, and the scale of what remains is almost incomprehensible: The number of theoretically possible compounds grows so fast with each added atom that synthesizing all four and five atom combinations alone would require every person on Earth working simultaneously—and the chemical universe only gets larger from there.
Chemistry's rules create boundaries, but those boundaries are surprisingly negotiable: Noble gases can occasionally form compounds, atoms can briefly exceed their normal bonding limits, and extreme environments like deep-sea hydrothermal vents or the conditions of outer space open up entirely new categories of chemistry that expand what's theoretically possible.
The search for new compounds relies on both systematic variation and serendipitous discovery: Scientists modify known substances, apply familiar reactions to new materials, and look to nature for accident, the same way Fleming stumbled onto penicillin, while modern tools like X-ray crystallography and MRI spectroscopy make it far faster to determine the structure of whatever they find.
EARTH
Earth’s frozen regions are sending a clear warning about climate change – but politicians are ignoring it
Over 50 leading cryosphere scientists have published an urgent warning: the world's ice is disappearing faster than governments are responding. In 2025 alone, polar ice sheets and mountain glaciers shed over 640 billion tonnes of ice. Sea-level rise is accelerating, permafrost is releasing greenhouse gases at scale, and climate negotiators at COP30 are actively softening the science in their final texts.
The Point:
The cryosphere is losing ice at a scale that should alarm every government on Earth: In 2025 alone, ice sheets and glaciers shed over 640 billion tonnes of ice, sea ice hit a 47-year record low, and permafrost thaw is now releasing greenhouse gases equivalent to a top-ten emitting nation every single year—and the rate is accelerating.
Climate negotiators are actively diluting the science at the very summits meant to act on it: At COP30, references to glaciers disappearing entirely in Slovenia and Venezuela were scrubbed from final texts, language about irreversible cryosphere changes was softened, and the first-ever explicit reference to a temperature overshoot appeared in the closing document: a signal that 1.5 degrees Celsius is no longer treated as a firm limit.
Scientists warn that current targets, even if met, lock in catastrophic ice loss: Even achieving 1.5 degrees Celsius of warming would eliminate roughly half the world's mountain glaciers and raise sea levels by several meters from polar ice sheets, while rapid emissions cuts in the next two decades represent the only remaining path to stabilizing temperatures before the damage becomes irreversible.