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Nanoparticles can help cancer drugs home in on tumors and avoid damaging healthy cells. Kateryna Kon/Science Photo Library via Getty Images

Nanoparticles are the future of medicine – researchers are experimenting with new ways to design tiny particle treatments for cancer

The COVID-19 mRNA vaccines put nanomedicine in the spotlight as a potential way to treat diseases like cancer and HIV. While the field isn’t there yet, better design could help fulfill its promise.
Since the mid-1990s, people have been doing less and less walking or bicycling to work and school and spending a lot more time staring at screens. RainStar/E+ via Getty Images

A boom in fitness trackers isn’t leading to a boom in physical activity – men, women, kids and adults in developed countries are all moving less

Research is revealing that fitness trackers alone can be helpful facilitators toward changing a sedentary lifestyle but don’t motivate people to increase their physical activity.
Dozens of coronavirus vaccines are in clinical trials in the U.S. Joao Paulo Burini/Moment via Getty Images

Will new vaccines be better at fighting coronavirus variants? 5 questions answered

Existing coronavirus vaccines are not as effective against newer variants of the virus. Two vaccine experts explain how new vaccines currently in development will likely offer better protection.
Sri Lankan students march during a protest over the economic crisis outside the residence of prime minister Mahinda Rajapaksa in Colombo, April 24, 2022. AP Photo/Eranga Jayawardena

Sri Lanka’s protests show a fragile unity – for now

The country has a long history of ethnic and religious conflict, but the worst economic crisis in decades has brought protesters together.
A U.S. Federal Marshal escorts Gail Etienne to her first day of school on Nov. 14, 1960. Underwood Archives/Getty Images

A New Orleans community center rises from its ugly history as a segregated school

In the early 1960s, the McDonogh 19 school was the site of fierce opposition to racial integration. The building is now owned by one of the Black girls who first integrated the school.
Assisted reproductive technologies like in vitro fertilization can help expand families, but regulations aren’t consistent across states. moodboard/Image Source via Getty Images

Fertility treatment use is on the rise – new legislation could increase protections for donors and families in an industry shrouded in secrecy

A pending bill in Colorado would disclose donor information to children and their parents and set limits on how many families can use a single individual’s egg or sperm.
NASA’s Landsat satellites have been monitoring changes on Earth’s landscape for 50 years. NASA illustration

Satellites over the Amazon capture the choking of the ‘house of God’ by the Belo Monte Dam – they can help find solutions, too

When Indigenous peoples lose their river flow to dams, satellite programs like Landsat – which is celebrating its 50th anniversary – can help them fight for their resources.