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.

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

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 ...

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 ...

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.

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 ...

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 ...

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.

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 ...

The Afternoon Constellation (A-Train) in 2021. By January 2025, the A-Train included only two remaining satellites, OCO-2 and GCOM-W1. Aqua and Aura continue to collect science data; however, they ...