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Two CubeSats, part of a constellation built and operated by Planet Labs Inc. to take images of Earth, were launched from the International Space Station on May 17, 2016. NASA

SpaceX and other companies are rushing to put thousands of small, inexpensive satellites in orbit, but pressure to keep costs low and a lack of regulation leave those satellites vulnerable to hackers.

The U.S. Supreme Court building, completed in 1935, is considered a neoclassical masterpiece. AP Photo/J. Scott Applewhite

Federal building guidelines say that 'development of an official style must be avoided' – which is exactly what a leaked executive order is trying to do.

Couples get romantic on Qixi, a lovers’ festival similar to Valentine’s Day. Visual China Group via Getty Images

China's Qixi Festival is a celebration of love based on the legend of a mortal who married a goddess, causing his furious mother-in-law to create a Milky Way to divide these two twinkling stars.

Do kids need to practice how to do this? Phil Mislinski/Getty Images

Teachers unions and gun-control advocates who decry the use of fake blood and simulated shootings have cause for concern. But getting students ready does take training and practice.

A police officer in Beijing adjusts his face mask, which millions in China are using in hopes of preventing coronavirus infection, on Feb. 9, 2020. The virus is causing major disruptions. AP Photo/Andy Wong

While US residents may feel safe from the effects of the coronavirus, the aftershocks could be damaging in unexpected ways. The disruption to China's supply chain could cause drug shortages.

The Rim Fire burned 256,000 acres of the Stanislaus National Forest and Yosemite National Park in 2013. (USDA Forest Service, Chris Stewart)

Wildfires reduce the reliability of city water supplies in North America. But active forest management provides a key to the solution.

Election fraud is not usually as obvious as this. Victor Moussa/Shutterstock.com

When the electoral process was helped along by practices that either were or appeared to be underhanded, the resulting wounds took a long time to heal – and may not ever have healed.

River erosion in Bangladesh, Sept. 12, 2019. Zakir Hossain Chowdhury / Barcroft Media via Getty Images

Bangladesh is on the front lines of climate change, but factors including money, gender and religion make some Bangladeshis much more vulnerable than others. Can it find inclusive ways to cope?

In an effort to increase tourism, Saudi Arabia recently eased its strict dress code for foreign women, allowing them to go without the body-shrouding abaya robe still mandatory for Saudi women. FAYEZ NURELDINE/AFP via Getty Images

In countries like Saudi Arabia, Qatar and Bahrain, it's now official policy that women should go to college and work outside the home. But cultural pressure to marry and have kids remains strong.

Two people, one profile pic. Monkey Business Images/Shutterstock.com

Social psychologists investigated why Facebook users post profile pics of themselves with a romantic partner and how those online displays are interpreted by others.

At the New Hampshire primary debate, America’s opioid crisis came up as an issue. Elise Amendola/AP Photo

In 2016, drug misuse was cited as the top concern among New Hampshire voters. What remedies are the Democratic primary contenders putting forward to combat the opioid crisis?

Early proponents of genome sequencing made misleading predictions about its potential in medicine. Natali_ Mis/Shutterstock.com

Genome sequencing technologies have transformed biological research in many ways, but have had a much smaller effect on the treatment of common diseases.

When looking at your paycheck, don’t forget about inflation. Leif Skoogfors/Getty Images

In his State of the Union address, Trump said workers are experiencing a boom in wages. The numbers say different.