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DNA editing has the capacity to treat many diseases, but how to do this safely and equitably remains unclear. KTSDESIGN/Science Photo Library via Getty Images

Human genome editing offers tantalizing possibilities – but without clear guidelines, many ethical questions still remain

Following the controversial births of the first gene-edited babies, a major focus of the Third International Summit on Human Genome Editing was responsible use of CRISPR.
Cells move their genetic material from one place to another in the form of RNA. Christoph Burgstedt/Science Photo Library via Getty Images

How does RNA know where to go in the city of the cell? Using cellular ZIP codes and postal carrier routes

Making sure RNA molecules are in the right place at the right time in a cell is critical to development and normal function. Researchers are figuring out exactly how they get to where they need to go.
Radio observatories like the Green Bank Telescope are in radio quiet zones that protect them from interference. NRAO/AUI/NSF

Radio interference from satellites is threatening astronomy – a proposed zone for testing new technologies could head off the problem

Many telescopes use the radio spectrum to learn about the cosmos. Just as human development leads to more light pollution, increasing numbers of satellites are leading to more radio interference.
This is the famous – and fake – photograph of the Loch Ness monster, taken near Inverness, Scotland, on April 19, 1934. The photograph was later revealed to be a hoax. Keystone/Hulton Archive via Getty Images

Is the Loch Ness monster real?

The idea of a creature like the Loch Ness monster fascinates people. But does the scientific evidence say it’s a prehistoric beast or total fake?
Wild birds like pelicans and ducks are getting infected with – and dying from – a new strain of avian influenza and have spread it to farm animals around the world. Klebher Vasquez/Anadolu Agency via Getty Images

What is spillover? Bird flu outbreak underscores need for early detection to prevent the next big pandemic

A biologist who studies how viruses spread from animals to people explains the process of spillover and the risks posed by the new bird flu that has spread across the globe.
In war, it’s not the size or sophistication of the technology, but how it’s used – especially in combinations. Elena Tita/Global Images Ukraine via Getty Images

Lesson from a year at war: In contrast to the Russians, Ukrainians master a mix of high- and low-end technology on the battlefield

A year ago, the Ukrainian military was largely equipped with Soviet-era weapons. It has since seen an influx of high-tech weapons. But it’s less what than how that’s made a difference.
It wouldn’t take much to turn this remotely operated mobile machine gun into an autonomous killer robot. Pfc. Rhita Daniel, U.S. Marine Corps

War in Ukraine accelerates global drive toward killer robots

The technology exists to build autonomous weapons. How well they would work and whether they could be adequately controlled are unknown. The Ukraine war has only turned up the pressure.
Epigenetics is but one of many factors that influence aging, health and disease. bestdesigns/iStock via Getty Images

Epigenetic and social factors both predict aging and health – but new research suggests one might be stronger

People don’t all age at the same rate. Untangling the factors that influence health and disease – such as epigenetics, demographics and behavior – could lead to better care for those who need it most.
White teens and teens of color do not have identical online experiences. JGI/Jamie Grill/Tetra images via Getty Images

Research on teen social media use has a racial bias – studies of white kids are widely taken to be universal

Black, Latino, Asian and Indigenous teens have different online experiences – both positive and negative – than their white peers. These differences are overlooked when research focuses on white kids.