The sun’s outer atmosphere resembles a pufferfish.

Sometimes there are storms where the wind gets really strong, it might rain, or there might be thunder and lightning. Did you ...

Earth reaches its closest point to the sun in its 2026 orbit on Jan. 3. The sun will appear larger in the sky than on any ...

Earth is about to see three total solar eclipses in just under two years, with each successive path of totality moving west ...

After four centuries of advances, astronomers now capture the Sun’s swirling, dynamic features in stunning detail.

Proba-3 is creating artificial solar eclipses in space, giving scientists a steady new way to study the Sun’s inner corona ...

Here's how the astronomical phenomenon influences our planet—from the length of our seasons to the way Earth moves through ...

Parker Solar Probe reached "perihelion," the nearest point to the sun in its orbit, on Dec. 13, 2025. Credit: ASA / Johns Hopkins APL / Steve Gribben illustration A NASA spacecraft is making a close ...

Researchers using China’s “artificial sun” fusion reactor have broken through a long-standing density barrier in fusion ...

Solar sails have some major advantages over traditional propulsion methods—most notably, they don't use any propellant. But, ...

Black holes are among the most extreme objects in the universe, and now scientists can model them more accurately than ever before. By combining Einstein’s gravity with realistic behavior of light and ...

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 ...