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It can stretch your mind to ponder what’s really out there. Stijn Dijkstra/EyeEm via Getty Images

Does outer space end – or go on forever?

Astronomers know a lot about what's in outer space – and think it's possible it never ends.
More than half of U.S. public school students are children of color, while most of their teachers are white. Justin Sullivan/Getty Images

4 ways to get more Black and Latino teachers in K-12 public schools

Teacher turnover is higher among Black and Latino teachers than white teachers. An education policy expert explains what schools can do to reverse the trend.
Like their ancient ancestors, contemporary Mandaeans revere John the Baptist and consider baptism the most important of their religious rituals. Hadi Mizban/AP

This tiny minority of Iraqis follows an ancient Gnostic religion – and there’s a chance they could be your neighbors too

Mandaeans are followers of ancient Gnostic religion, whose traditional homeland was the region of Iraq and Iran. Today, this small minority lives in many parts of the world, including the US.
In the 2018-2019 academic school year, 45.1% of professors at U.S. colleges and universities overall had tenure. Tom Werner/DigitalVision

Academic tenure: What it is and why it matters

Academic tenure – a system of job protections for university professors – came about in the early 20th century. Will it survive in the 21st century? A scholar weighs in.
Without a formal constitution, Israelis disagree on such basic issues as whether Israel is a Jewish state. Jack Guez/AFP via Getty Images

How Israel’s missing constitution deepens divisions between Jews and with Arabs

Governed by a changeable body of 'basic laws,' Israel never settled basic questions like the rights of religious minorities. These destabilizing issues will continue to fester under a new government.
Vaccination has saved millions of lives throughout the course of history. Phynart Studio/E+ from Getty Images

Millions are rejecting one of humanity’s best weapons for saving lives: Vaccines

Vaccines have successfully curtailed viral diseases for decades. But as COVID-19 vaccination hesitancy shows, mistrust and misinformation continue to put lives at risk.

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