By compressing and expanding carbon dioxide, this unusual battery solves one of renewable energy’s toughest reliability ...

Far from the Sun, Uranus has long looked like a quiet, teal marble in the dark. Yet a reexamination of decades old spacecraft readings now points to a violent episode in its past, when a blast of ...

NASA's Parker Solar Probe has generated the first continuous, two-dimensional maps of the Sun's outer atmosphere, revealing ...

From an interstellar comet to breathtaking auroras and from brand-new rockets to iconic space telescopes, here are some of our favorite images from the cosmos in 2025 ...

When interstellar comet 3I/ATLAS made its closest approach to Earth on December 19, 2025, it did not become a spectacular object in the night ...

ESA’s Juice spacecraft observed interstellar comet 3I/ATLAS in November 2025, capturing NavCam images and collecting instrument data, with full science results expected to arrive on Earth in February ...

The Parker Solar Probe has now traced the sun’s outer frontier in unprecedented detail, turning a once-theoretical boundary ...

Using the combined might of spacecraft scattered across the Solar System, scientists have built the most detailed map yet of ...

An instrument aboard NASA’s Europa Clipper spacecraft captured rare ultraviolet observations of an interstellar comet while Earth-based telescopes were blinded by the Sun. The spacecraft’s unique ...

NASA’s PUNCH mission observed comet Lemmon (C/2025 A6) during its solar pass, capturing images of the comet’s tail and movement from October to November 2025, revealing solar wind effects.

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

Far from the Sun, Uranus sits tipped on its side, carrying a magnetic system unlike any other planet’s. Its equator tilts ...