The ion tail appeared as Comet C/2025 R3 PanSTARRS was about 45 million miles from Earth (72 million kilometers) during its closest approach.
3I/ATLAS is definitely a comet, not an alien spacecraft, but it is only the third confirmed interstellar object detected in our solar system, and may be as much as 7 billion years old, so it is still ...
If you haven't ventured out and looked up at the skies over the last week at night — or really all of 2024 — you're missing out on quite the show. First, there were the northern lights that danced and ...
Comet ISON, shown here, was a sungrazing comet, or "star-grazer," that passed within roughly 730,000 miles of the Sun's surface in November 2013. — Wikipedia via ESA/Hubble A newly discovered comet is ...
Comet C/2025 R3 (PanSTARRS), a rare long-period comet, may be visible to the naked eye this week. Learn how and when to watch it from India before it fades.