The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say. A comet named 3I/ATLAS likely weighs more than 33 ...

Comet C/2025 R2 (SWAN) may become visible to the naked eye this October, offering a rare celestial show for skywatchers.

For millions of years, a fragment of ice and dust has drifted between the stars — a frozen message in a bottle from another ...

For millions of years, a frozen traveler drifted in silence through the stars, carrying secrets from another world. This ...

You may have seen claims about three comets discovered this year: C/2025 K1 (ATLAS), C/2025 R2 (SWAN), and C/2025 A6 (Lemmon), being visible in the fall skies. Yeah ... about that. Other WRAL Top ...

The interstellar object 3I/ATLAS is thought to be roughly 7 billion years old, making it even older than our solar system.

In October, a newly discovered comet will streak so close to Earth that people may be able to make out its heavenly fireworks with the naked eye — a spectacle that won’t happen again for more than a ...