Video: Is space debris a crisis?

The European Space Agency's short documentary film "Space Debris: Is it a Crisis?" on the state of space debris premiered at the 9th European Conference on Space Debris on 1 April 2025.

Dark matter could make planets spin faster

Dark matter is a confounding concept that teeters on the leading edges of cosmology and physics. We don't know what it is or how exactly it fits into our understanding of the universe. We only know that its unseen mass is ...

Hubble's 20-year study of Uranus yields new atmospheric insights

The ice-giant planet Uranus, which travels around the sun tipped on its side, is a weird and mysterious world. Now, in an unprecedented study spanning two decades, researchers using NASA's Hubble Space Telescope have uncovered ...

Could convection in the crust explain Venus's many volcanoes?

Venus—a hot planet pocked with tens of thousands of volcanoes—may be even more geologically active near its surface than previously thought. New calculations by researchers at Washington University in St. Louis suggest ...

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