How does the sun shine? Here’s why we are still a little in the dark

By Chanda Prescod-Weinstein JIRAROJ PRADITCHAROENKUL/Alamy Stock Photo ONE of the best things about being a columnist for New Scientist is the readers. I can tell you read my columns closely because I get fantastic emails asking smart questions about them. Last month, I wrote about how fusion works inside the local plasma gas ball, otherwise … Read more

Dimming The Sun Is a Dangerous Gamble And Should Be Banned, Scientists Warn

Planetary-scale engineering schemes designed to cool Earth’s surface and lessen the impact of global heating are potentially dangerous and should be blocked by governments, more than 60 policy experts and scientists said on Monday.   Even if injecting billions of sulphur particles into the middle atmosphere – the most hotly debated plan for so-called solar radiation … Read more

Fascinating Mouse Study Hints We May One Day Have mRNA Vaccine for Skin Cancer

Being sun smart could one day include a vaccination not unlike those currently providing millions around the world with immunity against coronavirus. While most immunizations sensitize our immune system to an aggressive agent like a virus or even cancer cell, emerging mRNA vaccine technology could instead train our bodies into generating additional antioxidant proteins, boosting our ability … Read more

The Solar System Exists Inside a Giant, Mysterious Void, And We Finally Know Why

The Solar System floats in the middle of a peculiarly empty region of space. This region of low-density, high-temperature plasma, about 1,000 light-years across, is surrounded by a shell of cooler, denser neutral gas and dust. It’s called the Local Bubble, and precisely how and why it came to exist, with the Solar System floating … Read more

The sun used to have rings like Saturn

Before Earth and the other planets in our solar system existed, the sun may have been surrounded by giant rings of dust similar to Saturn’s, according to a new study.  Those rings of dust may have prevented Earth from growing into a “super-Earth” — a type of planet that is about twice the size of … Read more

Microbes in The Ocean Depths Can Make Oxygen Without Sun. This Discovery Could Be Huge

For most of life on Earth, oxygen is essential, and sunlight is usually needed to produce that oxygen. But in an exciting twist, researchers have caught a common, ocean-dwelling microbe breaking all the rules.   Scientists have found that a microbe called Nitrosopumilus maritimus and several of its cousins, called ammonia oxidizing archaea (AOA), are able to … Read more

China’s $1 trillion ‘artificial sun’ fusion reactor just got five times hotter than the sun

China’s “artificial sun” has set a new world record after superheating a loop of plasma to temperatures five times hotter than the sun for more than 17 minutes, state media reported.  The EAST (Experimental Advanced Superconducting Tokamak) nuclear fusion reactor maintained a temperature of 158 million degrees Fahrenheit (70 million degrees Celsius) for 1,056 seconds, … Read more

Newly Discovered ‘Mini’ Supermassive Black Hole Is Among The Smallest Ever Found

Because they emit nothing we can detect, there are many things about black holes we simply do not know. Amongst the most perplexing are supermassive black holes, millions to billions of times the mass of our Sun. Since black holes form from the cores of massive dead individual stars, how do supermassive behemoths grow so … Read more

Heating Up Testicles With Nanoparticles Can Work as Male Contraception. Here’s How

Women have a variety of methods for contraception, but only two methods are commonly available to men: condoms and vasectomies. Both methods have their drawbacks. Condoms can break, and some men are allergic to the latex in standard condoms. Vasectomies are surgical procedures that can be painful and difficult to reverse.   So the search … Read more

What We Learned From a Dead Star Erupting With The Fire And Fury of 100,000 Suns

In a nearby galaxy, a rare kind of dead star erupted into a giant outburst. This in itself may not be so peculiar; but, for the first time, changes in its brightness during this event have been documented in detail, giving scientists a window into understanding the processes that produce these colossal flares.   The … Read more