Let's say we want to build a model of the sun and Earth alone. Earth has a radius of about 6,371 kilometers (3,959 miles), but let's represent this with a marble 1 centimeter in diameter.

A s the Earth flies through space in its celestial dance around the sun, it's accompanied by its perpetual partner, the moon.

YR4 made headlines earlier this year when its probability of impacting Earth in 2032 rose as high as 3%. While an Earth ...

Although Earth and the moon are roughly the same distance from the sun — about 93 million miles (150 million kilometers) — a few factors influence why their temperatures are so different.

Over 4.6 billion years ago, the early Earth emerged from a swirling disk of gas and dust encircling the young sun. This primordial material collided and coalesced, forming larger bodies through ...

Earth will get itself another moon this month, but only briefly. The "mini-moon" in the form of asteroid 2024 PT5 will stick around for just two months. Skip to main content ...

You might’ve seen a second so-called “moon” has recently taken up residence in our orbit. The school bus-sized asteroid will be orbiting Earth until Nov. 25.

After seeing Elon Musk send thousands upon thousands of satellites into low-Earth orbit, it’s only natural to wonder, why can’t we launch all our junk into space, too?

A March “Bloodworm Moon”, which is a phenomenon that will cause the moon to appear red during the total lunar eclipse, will take place Thursday, March 13 into Friday, March 14.

Later this month, an asteroid called 2024 PT5 will be joining Earth's orbit, becoming a mini-moon. The mini-moon will be in our orbit between September 29 and November 25. Here's how to see it ...

Earth is bidding farewell to a fleeting celestial companion. The asteroid 2024 PT5, has been orbiting near our planet for the past two months and is now leaving Earth’s vicinity, pulled away by ...

Planet Earth is bidding farewell to a "mini moon," a harmless asteroid named 2024 PT5, which has been trailing Earth for two months and will leave on Monday, drawn away by the sun’s stronger ...