Sun exposure is often framed as something to avoid, but research suggests that limited, intentional sunlight plays an ...

Most planetary systems contain worlds larger than Earth but smaller than Neptune, and the low-density planets around one ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

A new study led by a Georgia State University astronomy graduate student is a major step forward in the search for stars that ...

In a zesty new discovery, scientists have unearthed a strange lemon-shaped exoplanet. It is unlike one we have seen before, ...

The two telescopes—one based on Earth and the other orbiting the Sun—work together to capture the Sun’s activity from ...

The sun will appear larger in the sky than on any other day in 2026 on Jan. 3, as our planet reaches its closest point to our ...

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

Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the ...

The upcoming year will offer a blood-red moon, spectacular meteor showers and the first glimpse of the sun’s corona since ...

The 26-foot-tall (8-meter-tall) cargo lander is expected to embark on its first flight during the first quarter of 2026, ...

Technically, the sun is a G-type main-sequence star — specifically, a G2V star. The "V" indicates that it is a dwarf, Tony ...