Today’s Solutions: April 24, 2026

Science

From mathematics and AI to medicine and psychology, The Optimist Daily features the latest news on discoveries, technological advances, and breakthroughs in the world of science. Our Science section is here to engage and enlighten you.

Man repairing electronics

E-waste: Crucial “right to repair” laws have come into force in the EU

In an effort to cut the environmental impact of electronic goods, the European Union passed a law in 2019 that would force companies that sell products such as TVs, hairdryers, and refrigerators to ensure that those appliances can be repaired for up to 10 years. This week, the law finally came into Read More...

Sheep under solar panel

These Minnesota solar farms go beyond green energy production

Global renewables company Enel Green Power has installed 16 solar farms across Minnesota, but their arrays look a little different than others you find across the US. Instead of bare earth or gravel beneath the panels, you can find pollinator-friendly plants and grazing sheep. Recognizing the Read More...

Whale shark swimming through the sea.

A star-mapping algorithm from NASA is being used to save whale sharks

The Wildbook for Whale Sharks uses an advanced algorithm to scan images of sharks and compare them to thousands of archived photos to track populations, but the technology was not initially intended for use in our oceans. The system was first developed by NASA to map stars in the sky with the Read More...

International Space Station above earth

New study helps rocket us towards inclusive space travel

The AstroAccess project has taken flight, set up to understand what more inclusive space travel looks like. 26 percent of the American population have a disability according to the CDC, though 8.4 percent of the country’s employed scientists and engineers are disabled. The point of this project Read More...

Butterfly wing close up.

This is how butterflies could make our future security systems unhackable

Though fingerprint recognition may make us feel like we have control over our privacy when it comes to accessing our electronic devices, much like other modern security labels — like QR codes and electronic passes — our fingerprints are vulnerable to the possibility of being replicated.  A Read More...

Elderly man looking at tree with magnifying glass

You can contribute to science while observing nature in your backyard

From analyzing distant galaxies in order to help astronomers better understand the universe to protecting the coral reefs from climate change, there are plenty of cool ways you can contribute to science these days. And if you have been particularly attentive to the nature around you while in Read More...

Stack of newspapers.

This AI system protects journalists and the integrity of news media

The advancement of technology has expanded the reach and scope of modern journalism, but it has also created an environment for misinformation and libel cases are increasing in prevalence. Dedicated newsrooms and journalists are working to combat this issue, but with the breadth of the internet, Read More...

The bright white paint being displayed.

The future is bright white! How paint can help cool a city

Last year, we wrote about a team of researchers led by Purdue University mechanical engineering professor Xiulin Ruan who invented a kind of paint that is so white it reflects more than 95 percent of the sunlight that falls on surfaces covered in it. We love keeping track of solutions as they Read More...

Battery and wire installed on electric system of eco-car engine.

This is how bacteria can help us recycle electric car batteries

Though electric vehicles (EVs) emit much fewer greenhouse gas emissions than cars that burn petrol or diesel, the rare metals needed for manufacturing their batteries are increasingly in short supply. Currently, the EU recycles less than five percent of EV batteries, and the most common technique Read More...

Group of cyclists on a London street

How one neighborhood used gamification to reduce traffic emissions

Green transportation methods like walking, biking, and taking public transportation reduces carbon emissions and improve air quality for residents, but encouraging people to choose these options over personal vehicles is a challenge. One neighborhood in London has finally cracked the code on green Read More...