STARRS, also known as comet C/2025 R3 (Pan-STARRS), is quickly becoming the must-see celestial event of 2026. Here’s how, when and where to find it.

In late 2025, astronomers spotted an interstellar comet making a quick trip through the solar system. 3I/ATLAS was discovered ...

Interstellar comet 3I/ATLAS was almost called 3I/Rubin, after researchers found that the giant survey telescope ...

Comet C/2025 R3 (PanSTARRS) is brightening in the night sky in April. Here's when and how to see the buzzworthy celestial show.

NASA advises looking toward the eastern sky before sunrise, particularly in mid to late April, when the comet will pass through constellations such as Pegasus and Pisces. Observers in the Southern ...

Comet C/2025 R3 is already drawing attention—and offers a rare chance to understand what separates an ordinary comet from a truly “great” one.

The Southwest Research Institute-led Ultraviolet Spectrograph (UVS) instruments aboard ESA's Jupiter Icy Moons Explorer ...

Here's how to see Comet PanSTARRS in satellite images ahead of its close approach to Earth on April 26.

A mysterious comet from beyond our solar system is giving astronomers a rare glimpse into alien worlds — and it may have ...

3I/ATLAS is now sailing away from Earth and our solar system itself, but astronomers have already learned a wealth of ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically different from anything known to have ever formed around our sun ...