The interstellar object 3I/ATLAS has sparked intrigue in the scientific community after NASA's SPHEREx spacecraft detected ...

According to Michele Bannister, there are a myriad of these little worlds in our Solar System as of now. We simply cannot see them yet because we are not seeing faintly. The difference between that ...

NASA’s SPHEREx telescope observed a dramatic outburst from interstellar comet 3I/ATLAS after its October 2025 solar flyby.

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the ...

Interstellar comets are the original cosmic explorers, and by studying their metallic whispers, we are learning the secrets ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American In an earlier blog post about Christopher ...

Scientists report the first confirmed detection of thiepine, a complex sulfur-bearing molecule, in an interstellar cloud near the Milky Way’s center.

NASA’s SPHEREx telescope spotted interstellar visitor comet 3I/ATLAS flaring up while exiting the solar system. Scientists explain what caused it.

NASA’s TESS spacecraft captured dozens of images of interstellar comet 3I/ATLAS in. The data show the rare visitor behaves like a typical comet, with a steady rotation and sunlight-driven jets, ...

An international team of scientists has examined dust grains gathered by the NASA Stardust spacecraft and brought back to Earth – and has discovered that they originated in the interstellar dust ...