The TNO is potentially large enough to qualify as a dwarf planet, the same category as the much more well-known Pluto. The new object is one of the most distant visible objects in our solar system ...

OF201 spends only 1% of its orbital time close enough to us to be detectable. The presence of this single object suggests ...

A potential dwarf planet has been discovered in the outer reaches of our solar system, orbiting beyond Neptune. Its presence there challenges the existence of a hypothetical body known as Planet 9 ...

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to ...

Some scientists think they discovered a new dwarf planet at the edge of the solar system, so far away that it takes around 25,000 years to complete one orbit around the sun. Astrophysicist Dr. Paul ...

"Fortunately, it still takes a very long time." As the story of our cosmos moves forward, stars will slowly burn out, planets will freeze over, and black holes will devour light itself. Eventually ...

the remaining gas planets inhabit deeper space. The Solar System is also home to many other cosmic bodies including asteroids, moons and dwarf planets such as Pluto. What's this? Oh noooo ...

SpaceX is developing the fully reusable vehicle — the biggest and most powerful rocket ever built — to help humanity settle the Red Planet, a long-held dream of Musk's. SpaceX has not ...

There are ways to make it less miserable. By Jancee Dunn A few years ago, I contracted pneumonia and landed in the hospital for a few days. My nurse and I became fast friends as I asked her a ...

In 2003, it discovered a planet with 2.5 times the mass of Jupiter circling a neutron star-white dwarf binary in the Milky Way globular cluster M4. These clusters have few metals and yet ...