That’s because these planets are primarily made from gas and have no solid ... Olympus Mons is the tallest mountain in our solar system, standing at roughly 13 miles high. It’s about two and a half ...

Astronomers have discovered a group of objects beyond the Kuiper Belt, suggesting the existence of a second, more distant belt in our solar system.

Some key facts about the main asteroid belt: It contains around 1.9 million asteroids larger than 1 km in diameter. The four largest objects in the belt are Ceres, Vesta, Pallas, and Hygiea. Ceres is ...

The discovery may help scientists understand when and where planets like super-Earths can form in our galaxy, and help ...

During an equinox, places around the globe experience nearly equal amounts of daytime and nighttime. The second occurrence ...

LTT 1445 Ac is roughly the size of Earth and about 22 light-years away in the constellation Eridanus. The planet orbits the ...

In Japan, Autumnal Equinox Day is a national holiday. In Japanese, it’s known as Shubun no Hi (秋分の日), according to Coto ...

Volcanoes are not only terrestrial; they can also be underwater—and the latter can host their own ecosystems. After all, a hole in the Earth’s crust from which hot magma spews is not just a source of ...

Homeowners are installing solar panels in increasing numbers and reaping the financial and environmental benefits. But some ...

Is there a planet beyond Pluto (which is now a dwarf planet itself) in the outer solar system? This is a question that has haunted astronomers for ages, and if all goes well, the answer will be ...

Here are 10 facts about the Mississippi you may not know. 1. The Mississippi River Is the Third-Largest River Basin in the World Encompassing more than 1.2 million square miles, the Mississippi ...

The planet of Coruscant was built as a multiple-level city, with its lowest levels being filled with criminal gangs looking to make their mark. These levels were not only polluted and infested ...