There are 8 planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Naptune. The solar system formed about 4.6 billion years ago from a cloud of interstellar gas and dust.

The solar system could be packed with 1 million alien visitors, space rocks shaken away from our cosmic neighbor Alpha ...

The solar system moved through a star-forming area near Orion. This event might have increased interstellar dust around Earth ...

Like the planets in our solar system orbit the sun, most exoplanets also orbit a star. To date there are over 5500 known exoplanets confirmed by NASA, with trillions more predicted to exist within ...

IT’S been nearly 40 years since the first planet outside of our Solar System was discovered. Since then, more than 5,800 weird and wonderful worlds across 4,300 planetary systems have been ...

Millions of years ago, our Solar System traveled through a densely populated galactic region and was exposed to increased ...

A nne Verbiscer, a research professor in the University of Virginia’s astronomy department, is will soon be working with NASA ...

NASA is delaying the launch of the SPHEREx telescope to uncover the ingredients for life in our galaxy, as well as the PUNCH ...

With a sun more than 4.5 billion years old, our solar system is considered "middle-aged," and the pictures of what it might ...

This month, a total lunar eclipse and blood moon will be viewable across the U.S. Here's the best times and places to view ...

Mercury, the first planet from the sun, is about to stand out among the stars this week. But this brightness is not expected ...

A comet called ATLAS dazzled the southern skies for the last few weeks. Now it's heading out of view for half a million years ...