NASA’s Parker Solar Probe has given scientists an unprecedented glimpse of the Sun’s fiery behavior during powerful eruptions ...

A gigantic plasma eruption from the sun's hidden far side recently launched a sizable coronal mass ejection that slammed into Mercury, potentially triggering invisible X-ray auroras around the ...

Interstellar object 3I/ATLAS continues to display a Sun-facing anti-tail, confirmed by Hubble, Gemini and XMM-Newton observations, with explanations involving ice fragments and trailing objects.

I/ATLAS, a rare visitor from beyond the solar system, has revealed an unexpected signal. Scientists at the European Space ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Earth is today at aphelion, the point in its orbit at which ...