As astronomers study an exoplanet called K2-18b, conflicting research reveals how difficult it is to find evidence of life ...

The Webb telescope detects a clear, hydrogen-rich atmosphere, as well as water vapor, on the hot sub-Neptune planet TOI-421 B ...

Astronomers using the James Webb Space Telescope (JWST) have unveiled the largest map of the early universe to date, a ...

A pair of new studies has revealed that the hellish skies of exoplanet WASP-121b contain silicon monoxide gas, which has ...

NASA is monitoring three asteroids soaring past the Earth at about 8,000 to 15,000 miles per hour, the biggest of which measures around 1,300 feet in diameter.

For decades, scientists thought that stars much smaller than our Sun couldn't form giant planets. That theory just took a ...

Scientists using the James Webb Space Telescope (JWST) have made new discoveries about the origin and atmosphere of a distant ...

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White House Budget Plan Would Devastate U.S. Space Science Scientists are rallying to reverse ruinous proposed cuts to both ...

Scientists' best explanation for how planets form is called the core accretion theory. The birth of a planetary system begins ...

Astronomers have found that planet mass is about 17% of the mass of Jupiter, or about 53 times the mass of the Earth. The ...

Astronomers have been left puzzled by the discovery of an unusually large planet orbiting a remarkably small star, a cosmic ...