Scientists determine if an object is interstellar by computing its trajectory and observing its speed, as demonstrated with the recently discovered 3I/Atlas.

There have been a number of strange objects that have entered our solar system over the past decade, all of which have raised questions about their composition but more importantly their origin. In ...

On July 1, 2025, the Asteroid Terrestrial-impact Last Alert System (ATLAS) survey telescope, located in northern Chile, ...

Centimeter-sized pebbles have been detected in protoplanetary discs using e‑MERLIN, filling in a critical phase of planet ...

A mysterious object, first observed hurtling across the solar system on July 1, has now been identified as "very likely to be ...

A newly discovered ice comet from deep space may be over 7 billion years old, making it the most ancient comet scientists ...

Scientists have discovered a large object hurtling through our solar system. It is only the third time a celestial body from ...