This exoplanetary encyclopedia — continuously updated, with more than 6,000 entries — combines interactive 3D models and detailed data on all confirmed exoplanets. When you select a planet’s name, see ...

This animated graph shows CO2 levels from an Antarctic ice core in combination with the observations from Mauna Loa Observatory. This extends the record back through Earth’s last three glacial cycles.

F.10 Payloads and Research Investigations on the Surface of the Moon (PRISM) solicits development and flight of a ...

Images from Earth's Moon, the only world beyond Earth where humans have set foot.

Isotopes are different forms of the same element. Each form has the same number of protons in their nuclei, but a different number of neutrons. Nitrogen in the atmosphere is found primarily as ...

A total lunar eclipse will redden the Moon on March 3, 2026. Here’s what you need to know. A lunar eclipse occurs when Earth passes directly between the Sun and Moon, casting a gigantic shadow across ...

New analysis of decades-old data has turned up a significant result: the first discovery of ammonia-bearing compounds on the surface of Jupiter’s moon Europa.

The mountains of the western United States are sporting thin winter coats in early 2026. Although most regions saw average or above-average precipitation in fall and early winter, warmer temperatures ...

NASA's Mars Reconnaissance Orbiter blasted off from Cape Canaveral in 2005, on a search for evidence that water persisted on the surface of Mars for long periods of time. While other Mars missions ...

NASA’s James Webb Space Telescope has topped itself once again, delivering on its promise to push the boundaries of the observable universe closer to cosmic ...

What causes a solar storm? The Sun creates a tangled mess of magnetic fields — kind of like a disheveled head of hair after a fitful night of sleep. These magnetic fields get twisted up as the Sun ...