Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

Reference Explore the eight (or nine) planets of the solar system in order from nearest to the sun and discover the many wonders of our solar system along the way. An object seen to have moved in the ...

To put that in perspective, this new planet at the outer rim of the solar system would be almost 20 times farther away from the sun than Pluto is. Pluto, which infamously lost its status as the ...

The solar system consists of our star, the sun, and everything bound to it by gravity: the planets Mercury, Venus, Earth, ...

Saturn orbits the Sun at roughly 9.69 km/s, maintaining its grand system of rings as it cruises through space. Uranus moves at about 6.81 km/s, spinning on its unique sideways axis as it orbits ...

Our solar system is approximately 4.6 billion years ... But instead of searching for a planet’s direct light, astronomers used ALMA to identify the effects of potential planetary subjects ...

The birthplace of stars begins within large, cold clouds of gas and dust, which eventually collapse under the weight of ...

Caroline Delbert is a writer, avid reader, and contributing editor at Pop Mech. She's also an enthusiast of just about ...

Astronomers using the James Webb Space Telescope have directly detected the faint glow of a planet that’s colder than any ...

A 9th planet in our solar system might be found — and no, it’s not Pluto - Is there another planet out there? Researchers say ...

The world’s most advanced solar telescope just unlocked a new level of discovery with the first light from its Visible ...