On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a ...

Comet 41P slowed its rotation to a halt and then began spinning in the opposite direction, surprising scientists.

Following a massive cryovolcanic eruption, the mysterious Comet 29P/Schwassmann-Wachmann has been morphed into a giant spiral ...

Sky This Week is brought to you in part by Celestron. Friday, February 20Once the waxing Moon sets this evening, its ...

Scientists at Lawrence Livermore National Laboratory simulated one million satellite orbits in the vast stretch of space ...

Julian Marszalek dives into the multimedia project – book, film, soundtrack – celebrating a 5,000-year-old stone circle in ...

Comet 29P/Schwassmann-Wachmann 1, a city-sized icy body that orbits the Sun at roughly 6 astronomical units, is known for sudden outbursts that can produce a glowing coma with a spiral, ...

A distant planet’s final spiral into its star reframed Earth’s fate: not one sudden end, but long quiet thresholds over deep time.

All the “normal” matter, like the stars, gas, dust, and people, is called baryonic matter, and it’s basically the tiny visible fraction of a universe that’s mostly invisible and still not fully ...

Imagine an object so colossal that, if it occupied the place of our Sun, its surface would extend beyond the orbit of Saturn. Imagine a star that challenges not only the known physical limits, but ...

The sun's visible disk has been perfectly free from sunspots for the first time since June 2022, suggesting the current solar ...

On January 30 2026, SpaceX filed an application with the US Federal Communications Commission for a megaconstellation of up to one million satellites to power data centres in space. The proposal ...