New research led by the University of Michigan is helping set the stage for future observatories to characterize rocky ...

The status of Pluto not withstanding, our solar system has 8 planets, but one astronomer believes we used to have a ninth ...

In the early history of our solar system, scientists theorize that a Mars-sized object called Theia smashed into the infant Earth, vaporizing massive amounts of rock and blasting it into space. Some ...

Beta Pictoris b appears to have an aurora caused by a powerful magnetic field. If confirmed, it would be the first such field ...

Add Yahoo as a preferred source to see more of our stories on Google. 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 ...

For the last month and change, you might've seen the headlines about the planetary alignment, or a planetary parade, going on in our solar system. And that's true. In January 2025, Venus, Mars, ...

Everything comes in twos this month: two outer planets reaching full opposition to the sun, providing optimum viewing ...

See Venus, Jupiter, Mars, Mercury and Saturn light up September's sky before the Harvest Moon peaks on Sept. 26. No telescope ...

This week, five planets—Venus, Jupiter, Mars, Mercury, and Saturn—are visible at various times, all leading up to the full moon on September 26. They're known as the "naked eye planets" because they ...

Observing the planets is one of the most awe-inspiring ways to witness the magic of the night sky—and there’s no better way to view them than in a planetary alignment. This is where multiple planets ...