Did you know our solar system might have had an extra planet? Scientists believe a mysterious ninth planet once existed but ...

Venus, often written off as a geologically dead world, is far more active beneath its blistering surface than previously ...

Apples-to-apples comparisons in the distant universe are hard to come by. Whether the subject is dwarf galaxies, supermassive black holes, or 'hot Jupiters,' astronomers can spend months or years ...

Astronomy fans got to see a planetary alignment in mid-April featuring Venus, Saturn, Mercury and Neptune. Stargazers will ...

While asteroids are more easily discovered with optical telescopes, radar images shine when it comes to details.

A team of planetary scientists has developed a promising new way to peer beneath the dusty surface of Mars and other ...

An international planet hunt spearheaded by Monash University researchers has discovered evidence of five new baby planets, ...

In this episode, Astronomy magazine Editor Dave Eicher invites you to head out and observe a planetary nebula in the ...

Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they ...

The curious minds at What If explore what it would mean for life on Earth if every planet in our solar system were habitable.

The Cat’s Eye is a young planetary, at perhaps 1,000 years. In part because of this, it shows the multiple stages of a ...

A small planetary alignment is on the horizon It will take place near the end of May A crescent moon will be wedged between Venus to the south and Saturn to the north Astronomy fans got to see a ...