Close-up measurements from NASA’s Parker Solar Probe are giving scientists an unprecedented look at how the solar wind gains ...

The Sun is now at the most active point in its roughly 11‑year solar cycle, and scientists say the current peak has arrived ...

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

Comet 3I/ATLAS is a visitor that will never call the solar system home. Identified on a one-way path that carries it in and back out of the Sun’s neighborhood, it offers a bright glimpse of material ...

The boundary of the Solar System remains somewhat poorly understood. We know we are within it, in a region of space called the heliosphere, where particles released by the Sun dominate. Beyond it, the ...

Comet 3I/ATLAS was full-on erupting into space in December 2025, after its close flyby of the sun, causing it to ...

The mysterious space rock that passed through our solar system grew significantly brighter as it left, according to ...

Using data collected by NASA's Parker Solar Probe during its closest approach to the sun, a University of Arizona-led research team has measured the dynamics and ever-changing "shell" of hot gas from ...

'LHS 1903 breaks this thinking.' ...

Humanity has already flung machines into interstellar space, but sending people is a different problem entirely. The physics ...

NASA's infrared telescope SPHEREx captured stunning images of interstellar comet 3I/ATLAS as it exited the solar system.