The Solar System might not be as quiet and orderly as we think. Imagine one day looking up and seeing something strange in the sky, a small speck that grows larger and larger. Soon, it becomes clear: ...

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system.

In our own solar system, there are pretty good odds that you could stand on the surface of an asteroid and not even be able ...

Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.

Asteroid ‘Families’ Reveal Hidden Histories and Impact Risks across the Solar System ...

The bold question-askers at What If explore the potential of an Alderson disk in our solar system.

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say.

The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought experiment to it, highlighting everything about it that might align with a hypothetical alien spacecraft.

The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.

Earlier this week, the Sun unleashed a flurry of plasma and magnetic fields, or coronal mass ejection, at interstellar object ...

For more than 20 years, the Silverpit Crater deep under the North Sea has been the center of a heated scientific controversy. Some geologists were adamant that an asteroid produced the nearly-perfect ...