The discovery of Eos, the closest known molecular cloud to Earth and one of the largest structures in the night sky, hints at the presence of many previously unseen clouds throughout the galaxy.

Riyadh: King Abdulaziz City for Science and Technology (KACST) and the California Institute of Technology (Caltech) have signed a new addendum to their existing Joint Center of Excellence in Earth and ...

Astronomers have discovered that "super-Earth" planets may exist on wider orbits than previously thought — and this implies these rocky, or "terrestrial," worlds are far more common than was suspected ...

Terraforming Mars is widely discussed but rarely studied rigorously. This Perspective advocates for more research on the topic, ranging from warming methods to biological engineering, to clarify ...

Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they ...

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When our planet and the incoming sunlight align just right, stunning phenomena such as rainbows and halos can occur. More ...

Astronomers have discovered that super-Earth exoplanets are more common across ... co-author of the study and professor emeritus of astronomy at The Ohio State University. "Scientists knew there ...

In photos The details in this photograph include the airglow of the atmosphere dividing Earth from space — yellow-green at an altitude of 75 miles and a faint reddish hue 250 miles above the ...

A Soviet spacecraft launched in 1972 is falling back to Earth after 53 years. It is expected to enter the Earth’s atmosphere early Saturday morning, but exactly where is unclear. The spacecraft ...