Welcome to Sunday.

The most popular articles on our website this week looked at a petrified forest in Peru, advice for vaccinated people with symptoms of what could be COVID-19, climate refugees and warfare, states that ban atheists from running for office and bride kidnapping in Kyrgyzstan.

Editor’s pick: My son turned 20 last Friday. We celebrated him with a diner breakfast of pancakes and other small gifts. It was his day, but I couldn’t help thinking of his birth two decades ago and what hard work it was to bring him into this world.

At least people giving birth here on Earth can rely on the help of gravity – can you imagine what childbirth on the Moon might be like? In a piece we published in May, Chris Impey, a distinguished professor of astronomy at the University of Arizona, asks, “When will the first baby be born in space?” It may be sooner than you think.

Emily Costello

Managing Editor

With the evidence uncovered by paleontologists, an artist sketched El Bosque Petrificado Piedra Chamana as it might have looked long before humans. Mariah Slovacek/NPS-GIP

A volcanic eruption 39 million years ago buried a forest in Peru – now the petrified trees are revealing South America’s primeval history

Deborah Woodcock, Clark University; Herb Meyer, National Park Service

Using remnants of fossilized trees, scientists and an artist figured out what the forest looked like long before humans existed.

Some people can still get sick after getting vaccinated for COVID-19. Dragana991/iStock via Getty Images Plus

I’m fully vaccinated but feel sick – should I get tested for COVID-19?

Arif R. Sarwari, West Virginia University

Vaccinated people can still get infected with the coronavirus. So if you have symptoms of COVID-19, getting tested can protect others and help health officials keep an eye on the virus.