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For the first time, however, scientists have offered us a glimpse inside it.
Across the universe
The model serves as a trippy stellar exploration for viewers, but scientists want to use it to better understand the intricacies of star formation.
Stars serve vital roles, yet their beginnings remain something of a mystery. And the more we understand stars, the more we learn about ourselves, too.
Dig this
A silver coin dating back about 400 years has been unearthed at St. Mary's Fort in Maryland, one of the earliest English settlements in the New World.
When the settlement was founded in 1634, only about 150 people lived there. Coins were rare then because people traded tobacco for goods and services.
Excavations continue at the fort, where the team hopes to find more items that tell the story of English colonists as well as the Native people who lived in the area.
Discoveries
Previous research has shown that male animals were used six times more often than females, which hasn't changed much with time. Lab rats are used in preclinical research that serves as the foundation for studies in humans.
Concern has been growing in recent years that ignoring or downplaying differences in sex as a biological variable -- whether in cells under a microscope or in lab animals -- is undermining biomedical research at the earliest stages.
But change is on the horizon.
Other worlds
Mars is practically buzzing with activity these days. The red planet is currently home to multiple active missions, including China's Zhurong rover, which landed last weekend, and NASA's Perseverance rover and Ingenuity helicopter.
Named after a god of fire in Chinese mythology, Zhurong will spend the next three months searching for signs of ancient life on Mars
Climate changed
The climate crisis has led to a new phenomenon: wildfires that won't die.
Subsisting on the meager oxygen available beneath the snow, zombie fires can smolder for months, long after flames above ground have been extinguished.
These fires are related to rising global temperatures, and while they are only responsible for a fraction of burned land, these could become a formidable challenge for firefighters as large wildfires increase.
The wonder
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