James Webb's Latest Discovery Explained
The telescope found water vapor in a planet's atmosphere 120 light-years away. What this means for the search for life.
Read more →Why Voyager 1 Is Still Talking to Us
Launched in 1977, it's now 15 billion miles away. The engineering that keeps humanity's farthest spacecraft alive.
Read more →How mRNA Vaccines Actually Work
The technology behind COVID vaccines is now being used for cancer and other diseases. Here's how it works.
Read more →The Race to Nuclear Fusion Power
After decades of "30 years away," fusion energy is finally getting real. The breakthroughs and remaining challenges.
Read more →Earth's Magnetic Field Is Shifting
The north magnetic pole is moving faster than ever. What this means and why scientists are watching closely.
Read more →What Happened to the Ozone Layer?
The hole that terrified the 1980s is healing. A rare environmental success story and what we can learn from it.
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