Rocky planets like our Earth may be far more common than previously thought, according to new research published in the ...

Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

Astronomers are uncovering distant worlds beyond our solar system using ingenious indirect methods like observing stellar ...

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar ...

Nowhere to be seen—at least not yet—is a solar system like ours, with solid planets near the sun and gas-giant planets on orderly processions farther out. Such a system is the likeliest place for a ...

"At this point, we can rule out TRAPPIST-1d from a list of potential Earth twins or cousins." There's bad news for our hopes of habitable planets existing around TRAPPIST-1, with the James Webb Space ...

Unlike Earth’s atmosphere, Jupiter’s "sky" hosts magnificent shades of orange, white, brown and blue. G'day Charlie, and thank you so much for your incredibly curious question. Before I get too ...

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Learn more about volcanic activity on Mars and how it may have once provided vital elements to the atmosphere.

the Earth you walk on today might not be the same planet that was born 4.5 billion years ago. Many scientists believe that in its infancy, Earth collided with another world the size of Mars, and that ...