NASA’s Parker Solar Probe has completed a historic milestone by traveling closer to the Sun than any spacecraft before it.

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

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 ...

NASA’s Parker Solar Probe has spent the past year repeatedly diving into the sun’s outer atmosphere at speeds no human-made ...

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 ...

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

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What type of star it is: A yellow dwarf star The sun is the star at the center of ...

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

The fate of a comet that was predicted to pass close to Earth remains a mystery five years after its dramatic breakup in the ...

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

When NASA’s twin Voyager probes left Earth in 1977, they carried computers weaker than a hand calculator and a modest goal of ...

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