A new look at ancient rocks suggests that a self-sustaining nutrient cycle in ancient oceans helped keep Earth's atmosphere rich in oxygen for millions of years.

An alien radio signal from K2-155 d? Are there any alien civilizations out there? For several decades, scientists have been searching for evidence that they exist. That effort is collectively known as ...

The new exoplanet Elias 2-24 b is the youngest ever discovered, still forming in a cloud of debris around a young star just ...

Beta Pictoris b appears to have an aurora caused by a powerful magnetic field. If confirmed, it would be the first such field ...

Science fiction suggests that life on other planets, if it exists, is likely far more advanced than life on Earth. A recent ...

This summer, exoplanet science—the study of planets orbiting stars beyond our sun—took a big step forward. Reports of helium ...

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Astronomers have detected radio waves coming directly from an exoplanet for the first time. The signal from Beta Pictoris b could reveal secrets about its powerful magnetic field and auroras.

Using the same planet-hunting techniques as Earth astronomers, would inhabitants of a planet hundreds of light-years away be able to detect Earth? Or would the gas giants overpower their observations?

Sandra Bullock is convinced extraterrestrials are "watching us" on planet Earth. During a recent interview for the Therapuss podcast with Jake Shane to promote her new movie, Practical Magic 2, the ...