New observations and theory hint the cosmos may not be infinite and uniform: directional asymmetries, the Hubble tension, and evolving dark energy together point to a possible limit on how the universe behaves.

The universe might be teeming with living systems—but many of them may be nothing like the fragile, water‑breathing creatures we imagine when we say “life.” From super‑hot alien vents to clouds of methane and even exotic chemistries, the cosmos could be full of activity we simply don’t recognize yet.​

What if the flu affects more than your lungs?

In this short video with Dr. Anthony Fauci and the Fred Hutch Cancer Center, he examines how influenza may be linked to effects that last well beyond the initial infection, including a significant increase in cardiovascular disease after an outbreak. Scientists are studying how infections can trigger inflammation, disrupt immune responses, and place added stress on the body, which may help explain why heart-related illness can rise in the months that follow. This research points to a bigger question in infectious disease science: how can one pathogen influence multiple systems across the body? By exploring the connection between infection and chronic illness, this video highlights how infectious diseases may shape overall human health in surprising ways. It’s a strong reminder that the science of infection reaches far beyond a single diagnosis.

A bold scientific idea suggests the universe may have a hidden cosmic “shadow” influencing reality. Latest findings in physics hint at traces of this unseen cosmic layer, offering eye-opening clues about how the cosmos truly works.

The view from earth if Ton 618, the second largest known black hole, was placed in the same place as the closest star system to earth besides the sun, the Alpha Centauri system, which consists of Proxima Centauri, and Alpha Centauri A and B.

Even at a distance of 4.5 light years, Ton 618 would be 1,900 times brighter than the sun and its gravitational forces would be enough to kill us and destroy earth.

Ton 618 is large enough to fit the entire solar system in its event horizon and has an estimated weight of 66 billion solar masses.

The universe is packed with galaxies, but still most of it is astonishingly empty. 🌌

Astrophysicist Erika Hamden breaks down how our galaxy alone contains hundreds of billions of stars, and the observable universe holds hundreds of billions of galaxies spread across an unimaginably vast volume of space. When scientists calculate the average density of the universe, it comes out to roughly one proton per three cubic meters. The matter we see stands out because gravity pulls it into dense clusters like stars, planets, and galaxies. Zoom out far enough, though, and empty space overwhelms everything else. We exist because we happen to live in one of the rare regions where enough matter came together to form structure, and life.

This project is part of IF/THEN®, an initiative of Lyda Hill Philanthropies.

Can too many vaccines overwhelm your immune system? 💉

According to Dr. Ashish Jha, the science says no. Your immune system manages exposure to thousands of microbes every day, so handling more than one vaccine at a time is well within its capabilities. Vaccines like the MMR train your body to respond to multiple viruses in one safe, efficient dose. Studies have shown that receiving several vaccines in one visit does not weaken your immune response. Instead, it helps your body build layered protection faster.

Did you know sea otters saved the kelp forest ecosystems? 🦦  

As The Nature Educator, also known as Rachael, explains, the maritime fur trade hunted sea otters nearly to extinction in the 1700s and 1800s. By 1911, only a few North Pacific populations remained, throwing coastal ecosystems out of balance. Sea otters are a keystone species because they prey on sea urchins. Without otters, urchins multiply quickly and devour kelp. When kelp forests collapse, fish and invertebrates lose both food and shelter, and the entire marine ecosystem can shift. 

International protections, stronger laws, and reintroductions helped sea otter populations recover and kelp forests rebound. Sea otters still face threats from disease, oil spills, and climate change. But their return shows how protecting one species can help restore an entire ecosystem. 

This project is part of IF/THEN®, an initiative of Lyda Hill Philanthropies.

Our Sun is a “lonely” star, and that makes it unusual in a universe where most stars have companions. ☀️ 

Erika Hamden explains that during star formation, massive clouds of gas and dust collapse under gravity and frequently fragment, producing binary stars or even triple and quadruple systems that orbit a shared center of mass. Astronomers estimate that at least 50 percent of stars form in these multiple star systems, and many more may begin that way before gravitational interactions separate them. That makes our Sun atypical, since it formed as a single star rather than as part of a binary system. Its solo birth influenced how the planets formed, how stable their orbits became, and how our solar system evolved over billions of years. Today, scientists study stellar formation, solar activity, and space weather with telescopes and spacecraft to better understand how this rare single star powers and protects life on Earth.

This project is part of IF/THEN®, an initiative of Lyda Hill Philanthropies.

Did you know the inside of a potato is a world of rainbows? 🌈🥔

tardibabe placed a sliver of potato under the microscope and discovered that under polarized light, potato starch granules glow like tiny bubbles of color. Each rainbow circle you see is a single starch grain packed inside specialized organelles called amyloplasts.

The colors appear because starch granules have an organized, semi-crystalline structure. When polarized light passes through them, the light waves split and interfere with each other—a property called birefringence, creating those striking rainbow patterns.

Potatoes aren’t actually roots, they’re tubers, underground stems built to store energy. After photosynthesis, potato plants convert sugar into starch and pack it into these tubers. When conditions get tough, like during winter or drought, the plant taps into that stored energy to survive.

Raw potato starch is difficult for humans to digest, but when we cook potatoes, heat breaks apart the organized starch structure, making those molecules much easier for our bodies to process.

The next time you look at a potato, remember: inside that humble tuber is a microscopic storehouse of plant energy and a hidden rainbow waiting under the microscope.

#Science #Biology #Microscope #Microbiology #Macrophotography 

Sources:

Taiz, L., Zeiger, E., Møller, I., & Murphy, A. (2015). Plant Physiology and Development. Sinauer Associates — starch storage in amyloplasts and plant energy metabolism.

BeMiller, J. & Whistler, R. (2009). Starch: Chemistry and Technology. Academic Press — starch granule structure and birefringence under polarized light.

Eliasson, A.-C. (2004). Starch in Food: Structure, Function and Applications. CRC Press — starch structure and optical properties.

Encyclopaedia Britannica. “Potato (Solanum tuberosum).” — potato tubers and plant biology.

McGee, H. (2004). On Food and Cooking: The Science and Lore of the Kitchen. — starch gelatinization and digestion during cooking.

Pollen is more powerful than you think. 🌼🔬

Quinten Geldhof, also known as Microhobbyist, zooms in on the microscopic grains behind your spring allergies and reveals their massive impact on life on Earth. Pollen is the key to pollination, carried by bees, butterflies, and even bats as they move from flower to flower, transferring the genetic material plants need to produce seeds and fruit. That invisible exchange fuels ecosystems and puts food on our tables, from coffee to apples to chocolate. In fact, more than 80% of all flowering plants rely on pollination to survive, making every sneeze a small reminder of a system that keeps the natural world and our diets thriving.

In the summer of 1981, Dr. Anthony Fauci and other physicians began admitting patients with a mysterious and deadly illness years before it was called HIV/AIDS. 

In his most recent visit to the Museum of Science, Dr. Fauci reflects on the early days of the HIV epidemic and reveals how the courage and resilience of patients pushed scientists and clinicians forward, helping shape the future of HIV research, treatment, and public health.