The solar system holds extraordinary wonders, from Voyager 1’s historic journey into interstellar space after traveling ...

An artist's depiction of a hot Jupiter planet orbiting its star. Skewed planetary pathways around a star aren't so strange after all. But fresh research led by Yale University shows that even ...

Today, let's talk about an incredibly mysterious celestial body in the solar system — Sedna. Did you know that it takes Sedna about 11,000 years to complete one orbit around the Sun? It leisurely ...

"This is really like looking at ourselves in a funhouse mirror." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Skewed planetary pathways around ...

Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

A new trans-Neptunian object, 2017 OF201, has been found with a vast orbit and potential dwarf planet size. The finding hints at more hidden bodies beyond Neptune. A research team led by Sihao Cheng a ...

A new study suggests that a close encounter with a massive interstellar object, possibly eight times the mass of Jupiter, may have significantly altered the orbits of the four outer planets in our ...

The Kuiper Belt is loosely defined as a doughnut-shaped swath of space beginning just beyond the orbit of Neptune and ...

Scientists have been trying to find a hypothetical Planet 9 that may exist outside our known solar system based on the unusual orbits of certain dwarf planets. But those orbits might not require a ...

When planetary scientists look to other stars for planets beyond Earth, they don’t often turn up much that resembles our solar system. Whether it’s because of star size, detection method, or observing ...

The coldest planet in the Solar System is Uranus, which is surprisingly colder than Neptune due to its unique internal heat ...