A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

From lava worlds to gas giants, NASA says the variety of these worlds is staggering—and that signs of a further 8,000 distant ...

We all need some space sometimes—but it's harder to find than you might think. How far into our universe do we have to go to ...

NASA recently launched a telescope designed and built by UMass Lowell and the space agency that seeks to identify planets ...

Space scientists look back on 30 years of exoplanet discoveries — from rows of massive ‘super-Earths‘ to worlds with ...

NASA unveiled the result of the research that analyzed over 40 years worth of old satellite data to add more into the ninth ...

Just decades after the first exoplanets were identified, our database of the distant worlds—monitored by the NASA Exoplanet Science Institute—has breached a new threshold. Now, astronomers have ...

After decades of exploring, NASA's Voyager 1 hit the edge of the solar system and passed through a great "wall of fire," ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

While its star projector leaves a lot to be desired, the Science Can Solar System Planetary Projector is a fantastic educational tool for kids, with its solar system model, complete with talking ...

Interstellar comet 3I/ATLAS — just the third such object ever confirmed to have entered our solar system — flew past Mars ...