Scientists are tracking strange cosmic signals called fast radio bursts—and their origins remain unclear.

Astronomers are picking up mysterious pulses from deep space, and no one is completely sure what’s causing them. Known as fast radio bursts (FRBs), these flashes of energy are incredibly powerful, yet last only milliseconds. First detected in 2007, FRBs have been traced to galaxies billions of light-years away, but their exact origins remain unsolved.

NASA research points to highly magnetized neutron stars, known as magnetars, as one likely source. Still, other bursts defy easy explanation, leaving scientists with a cosmic mystery that could reveal new insights into how the universe works.

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A new NASA forecast raises urgent questions about Earth’s most vital resource.

The air we depend on may not be as secure as we think. For decades, scientists have tracked subtle but troubling shifts in Earth’s atmosphere, and the latest warnings suggest the balance sustaining life isn’t guaranteed. It’s a chilling reminder that even the most basic things we take for granted—like breathing—can be vulnerable. When oxygen itself comes into question, the future feels far less certain than we’d like to believe.

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New discoveries are offering fresh clues about why the ancient monument was built and how it was used.

Stonehenge has long baffled historians and visitors alike, standing as one of the world’s most enduring mysteries. For centuries, theories about its purpose have ranged from an ancient burial site to a giant astronomical calendar.

Now, new archaeological evidence is providing clearer answers. Recent research highlighted by English Heritage suggests that Stonehenge may have served as both a ceremonial gathering place and a sophisticated solar marker. While questions remain, these discoveries are offering the strongest clues yet about why this monument was built—and how it shaped the lives of the people who raised its massive stones.

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