A rare triple conjunction of Venus, Mars and Mercury is happening on the opposite side of the solar system to where Earth is, ...

The planet Neptune has a large dark spot "with an unexpected smaller bright spot adjacent to it," inveru observations using ...

A decade of observations of four planets around the young planetary system V1298 Tau revealed a rare, long-sought missing ...

At extreme pressures and temperatures, water becomes superionic — a solid that behaves partly like a liquid and conducts ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

Why Can't We Find Planet 9? Deep in the outer reaches of our solar system, far beyond Neptune and Pluto, something massive is ...

From Mercury to Neptune, observers in the United States will get to see this historic planet parade known as a large ...

Scientists have discovered more than 6,000 planets beyond our solar system. What if some of them aren't planets at all, but ...

Compared to our 4.5-billion-year-old sun, ​​the 20-million-year-old V1298 Tau is a stellar baby, making it ideal for ...

It will appear as if Saturn, Neptune, and the Moon are dancing across the sky in a celestial spectacle that will take place ...

We live in a very exciting time: answers to some of the oldest questions humanity has conceived are within our grasp. One of ...

Under extreme planetary conditions, water turns into a strange, electricity-conducting solid hidden deep inside giant planets.