12 billion years old interstellar comet 3I/ATLAS may be older than the solar system

I/ATLAS arrived fast, bright, and strange. When astronomers spotted it on July 1, 2025, they knew almost immediately this was no ordinary comet.
National Academy of Sciences

Building Blocks of the Solar System: A Conversation with Meenakshi Wadhwa on Asteroid Day

Every June 30th, Asteroid Day marks the anniversary of the 1908 Tunguska impact and turns global attention to the science of ...
Smithsonian Magazine

A Rare Comet Made History as the Third Known Interstellar Object to Fly Through Our Solar System. Studies Are Now Revealing the Mysterious Conditions in Which I…

In the latest research, telescope observations of 3I/ATLAS examine its chemical structure and suggest that it took shape in a ...
Science Daily

Interstellar comet 3I/ATLAS is spraying water across the solar system

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the third known interstellar comet ever spotted. When scientists turned NASA’s ...
Digital Trends on MSN

Snapchat planets: What’s the order, and what do they mean?

Snapchat Planets turns your friendship ranking into a tiny social solar system, where being Mercury is elite and Neptune might sting a little.The Latest Tech News, Delivered to Your Inbox ...

Planet orbits so close to its star that their magnetic fields connect

At the right point of the orbit and stellar cycle, the star’s chromosphere brightens.
Smithsonian Magazine

Interstellar Comet 3I/ATLAS Might Be the Oldest Object Ever Seen in Our Solar System, a Study Suggests

Based on the composition of gases spewed by the icy space rock, researchers estimate that our guest might be up to 12 billion ...