This Spanish expert, a member of NASA and ESA's Mars missions, analyzes the interest in the far side that Artemis 2 will fly ...

How long do planetary nebulae last on average? What are some of the controlling factors? Doug KaupaCouncil Bluffs, Iowa To ...

Add Yahoo as a preferred source to see more of our stories on Google. Friday holds a special celestial treat in store for astronomers and amateur stargazers. Mercury will become the seventh planet to ...

For years, planetary scientists have argued that some of the material that built Earth must have drifted in from beyond ...

What: A newly identified star system, Gaia GIC1, exhibits unusual brightness variations consistent with a large planetary ...

Enjoy this week's planetary bonanza, from Earth to distant Saturn and everything in between. We also feature unusual ...

For some time, astronomers have theorized that there is a connection between planetary mass and rotation. In the solar system ...

Astronomers have classified planetary systems into four distinct categories, based on the sizes and arrangements of their planets. As it turns out, the architecture of our own solar system is the ...

When we think of asteroids, we almost immediately think of giant rocks bouncing around like the iconic chase scene in "The Empire Strikes Back," and we often hear how they are remnants from the birth ...

Stargazers who have heard of an amazing planetary alignment coming later in January may be in for a letdown if they look up at the night sky expecting to be dazzled. Yes, six planets will be visible ...