A rare interstellar object is hurtling toward the sun and, despite viral claims, experts say it's just a normal comet, although it's showing some unexpected behavior. 3I/Atlas marks the third ...

More than 3 billion miles (4.8 billion kilometers) from Earth, an ancient icy object is slowly awakening. As it drifts inward ...

Sometime in 2029, the European Space Agency is scheduled to launch its Comet Interceptor Mission. The Interceptor will wait for a long-period comet to arrive in the inner solar system then set off on ...

This diagram shows the path Comet C/2025 K1 (ATLAS), or K1, took as it swung past the sun and began its journey out of the solar system. NASA's Hubble Space Telescope captured the inset image of the ...

NASA's Perseverance rover took this selfie in May 2025. The Navcam used to capture the apparent comet images is located just below the large white camera at the top of the mast. NASA/JPL-Caltech/MSSS ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space telescopes and orbiters have been documenting the rare visit. A mysterious ...

This is a Hubble Space Telescope image of the interstellar comet 3I/ATLAS. Hubble photographed the comet on July 21, 2025, when the comet was 277 million miles from Earth. Hubble shows that the comet ...

A more local, icy space rock known as 220P/McNaught is currently streaking across the sky, and observers are taking note of ...

A comet from another star system is due to make its closest—and final—approach to Earth this week before it continues on its journey back toward interstellar space. Interstellar Comet 3I/ATLAS will ...