Discover the order of planets in the solar system. From Mercury to Neptune, explore our solar system and learn more about our cosmic home. The solar system is our cosmic neighborhood, made up of ...

Beyond the edge of Neptune, a distant realm of icy debris known as the Kuiper Belt stretches deep into space. This frozen ...

Astronomers have confirmed thousands of exoplanets, and we're finally beginning to spot some solar systems with large collections of planets not ... orbits in this solar system are extremely ...

A composite image comparing the relative sizes of our solar system's known dwarf planets, including the newly discovered 2017 OF201. | Credit: Sihao Cheng et al. Scientists have found evidence of ...

This diagram shows the orbital distribution of extrasolar ... Most of these extrasolar planets are much closer to their host stars than the innermost planets of our solar system are to the sun.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Our understanding of the solar system is a work in progress. Pluto ...

Scientists have found evidence of a previously-undetected dwarf planet at the edge of the solar system. The object, dubbed 2017 OF201, follows an extreme, oblong orbit, taking some 25,000 Earth ...

Scientists have long puzzled over why all of the planets in Earth’s solar system have slightly slanted orbits around the sun. But a new, Yale-led study suggests this phenomenon may not be so unusual ...

Chris Impey receives funding from the National Science Foundation. Planets orbit their parent stars while separated by enormous distances – in our solar system, planets are like grains of sand ...

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in circular orbits around the Sun on a flat disk. But in reality ...

As a result of the International Astronomical Union’s 2006 demotion of Pluto from planet to dwarf planet, our solar system now consists of eight planets, nine dwarf planets, 891 confirmed moons or ...