Category: 9. Sci/Tech

Every cell in an animal’s body carries the same DNA. Yet that single genetic blueprint somehow produces neurons that fire, muscles that contract, and tissues with entirely different jobs. How identical genomes give rise to such variety remains…

Your mind is usually busy — replaying conversations, planning dinner, worrying about tomorrow, narrating the present. But every so often, that activity seems to stop. There’s no thought to follow and no image to latch onto. For a brief…

Most people recognize the risks of secondhand smoke. The haze, the smell, the immediate irritation – it is an exposure that feels obvious and temporary. But new research suggests the real danger may linger long after a cigarette is…

Key Takeaways on the Size of Our Galaxy

• Understanding the size of our galaxy depends on the definition used for our galaxy. There are a range of definitions, some very specific and some that delve into the realm of dark matter.
• The Milky Way…

Killer whales have been spotted swimming around with dead salmon on their heads. The behavior was first spotted in 1987, among the Southern Resident population of killer whales, a critically endangered group of orcas that live off the Pacific…

For example, researchers at Imperial College were investigating how certain “pirate phages”—these fascinating viruses that hijack other viruses—manage to break into bacteria. Understanding these mechanisms could open up entirely new ways…

Mathematics is a “science which requires a great amount of imagination”, said the 19th-century Russian maths professor Sofya Kovalevskaya – a pioneering figure for women’s equality in this subject.

We all have an imagination, so I believe…

Stuck in front of our screens all day, we often ignore our senses beyond sound and vision. And yet they are always at work. When we’re more alert, we feel the rough and smooth surfaces of objects, the stiffness in our shoulders, the softness…

On 22 February 1498, a well-weathered mid-40s Christopher Columbus ordained in writing that his estate in the Italian port city of Genoa would be maintained for his family “because from it I came and in it I was born”.

Though most historians…

For many young adults, downtime has become strangely exhausting. Even moments meant for rest are often filled with scrolling, notifications, and a lingering sense of pressure to be productive. But new research suggests that relief from burnout…