The moon's ascending node (the point in the sky where its orbit crosses the ecliptic from south to north) is moving westward ...

Filmmaker Adam Nemoy helps celebrate the 90th anniversary of Pluto's discovery this month at the 6th annual 'I Heart Pluto' ...

Mercury takes only 88 Earth days to orbit the sun.

Scheduled to launch on Feb. 27, NASA's PUNCH mission could revolutionize space weather forecasts, unify the solar corona and ...

Everyone knows that the Earth rotates in space, which is why we have the day and night cycle. What many people may not realize, however, is that the sun is also rotating. It takes about 25 days ...

Here’s how it works. The term "perihelion" describes the point in an astronomical body's orbit where it is nearest to the sun. Derived from the Greek words peri (around) and helios (sun), the ...

So why has the sun been rising later than it did on Dec. 21? Like much of our day and night cycles, the answer lies in Earth's rotation and orbit. Yes, the sun has risen later than it did Dec. 21 ...

SpaceX is scheduled to launch its Maxar 3 mission, with two high-resolution commercial satellites on board, from the Kennedy ...

The Blue Ghost lunar lander has captured its first images of the moon from Earth’s orbit as well as a video of Earth ...

of the sun — just outside Mercury’s orbit — from where it took the images you see here. The sun is 93 million miles (148 million kilometers) from Earth. This high-resolution image shows the ...

An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an impact thousands of years ago.

A major rotation is taking place on Thursday. Many of the biggest winners of the past couple years are struggling while the laggards are having their day in the sun. The consumer price index for ...