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.

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 ...

A candidate planet that might be remarkably similar to Earth, HD 137010 b, has one potentially big difference: It could be colder than perpetually frozen Mars.

Engineers and scientists at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, completed tests this month on a second early version of a key element ...