Figuring out how helium-3 got incorporated into the core during Earth's formation is very important for understanding when the planet formed, Olson said. Light gases like helium hung around in the ...

A stunning cosmic getaway is in store for residents of the United States on Friday evening as seven planets will align in a spectacular display — dubbed a planet parade — that can be seen ...

A stunning photo of a "parade of planets", shows Mars, Jupiter, Uranus, Saturn, Venus, Neptune, and Mercury in alignment from Earth. The image could be the first of its kind.

Here are our reviews of eight new or forthcoming graphic novels and comic-strip collections that tackle the Earth’s problems — from pollution ... If he becomes the first human to set foot on (occupy) ...

Here's everything to know, including how to spot the great planet alignment. Planetary alignments occur when multiple planets gather closely on one side of the Sun at the same time. According to ...

On any given night, weather permitting, you can spot at least one bright planet in the sky ... Venus and Mercury orbit closer to the sun than Earth, meaning they orbit much quicker than other ...

An international team, including researchers from UC Santa Barbara, made their prediction based on a new interpretation of the small changes in Earth’s orbit of the sun, which lead to massive shifts ...

This week, Mercury is joining Venus, Mars, Jupiter, Saturn, Uranus, and Neptune for a seven-planet parade (although not all of them will be visible to the naked eye). Here’s what that all means ...

PERTH, Australia — Long before humans walked the Earth, ice reshaped our planet in dramatic ways. During the Neoproterozoic era (717–580 million years ago), a series of extreme glaciations transformed ...

Studying Snowball Earth offers a window into our planet’s past, but it also presents valuable insights into modern climate change, lead study author Dr. Chris Kirkland said. “Our deep time ...

Each planet in our solar system takes a different amount of time to complete one orbit around the sun. For example, Mercury, being closest to the sun, takes just 88 Earth days to complete one orbit.