I/ATLAS is the third interstellar visitor ever to visit the solar system having been formed around a distant star.

At roughly 250,000 kilometers per hour, comet 3I/ATLAS did not merely pass through the inner solar system it tore through it, fast enough that the Sun could never hope to keep it. That kind of speed ...

After years of speculation, scientists finally believe they have figured out the crystal conundrum thanks to new imaging from ...

Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a ...

The international team of astronomers reports that all of the types of ice in the comet appear to be sublimating. This is the phase change where a solid turns into a gas, skipping the liquid phase.

C/2024 E1 (Wierzchos) brightened significantly ahead of its close approach to the sun.

Scientists in Boulder are using existing NASA spacecraft to track a rare interstellar comet called 31/ATLAS as it travels through Earth’s solar system. Comet 3I/ATLAS was first observed on July 1 and ...

NASA and international observers confirm that Comet C/2024 E1 (Wierzchos) will reach its closest point to the Sun—known as ...

Recently discovered Comet C/2025 R3 (PanSTARRS) will make its closest approach to the sun and Earth in late April and could ...

I n 2016, NASA launched the Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer (OSIRIS-REx) probe, which famously touched down on asteroid Bennu in 2020, before ...

Scientists confirmed that the interstellar comet 3I/ATLAS, which passed closest to Earth in December 2025, showed no ...