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.

There are two small moons in orbit around Mars today, but both may be remnants of a much larger moon that had enough of a ...

From a particle smasher encircling the moon to an “impossible” laser, five scientists reveal the experiments they would run ...

This means that, due to time dilation, you would age faster on Mars than on Earth. If you were to spend a whole 50 years on the Red Planet, you’d end up a whole 9 seconds older than if you had stayed ...

"During the early solar system's game of cosmic billiards, Earth was struck by a neighbor,” said Dauphas. “It was a lucky shot. Without the moon's steadying influence on our planet's tilt, the climate ...

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, ...

Space has a knack for bending our sense of scale. The Moon feels close enough to touch—after all, we see its craters with nothing but our eyes. Yet, that 238,855-mile gap between Earth and its lunar ...

About 4.5 billion years ago, a world the size of Mars crashed into Earth and scattered debris that became the Moon. New measurements of subtle chemical fingerprints in ancient rocks now tie that lost ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. This article was originally published at The Conversation. The publication contributed the ...

The Moon formed from a giant impact of the proto-Earth with the ancient protoplanet Theia. In a new study, a team of scientists from the United States, Germany, France and China measured iron isotopes ...

"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system. Earth and Theia are likely to have been neighbors." Over 4.5 billion years ...