Earth is the only rocky planet in the solar system with a significant moon. And the moon really is significant: It's roughly 1.2% the mass of Earth. That may not be big in an absolute sense ...

Illustration of a stage in the formation of the Earth-moon system. The Earth had recently formed (4,600 million years ago) when it was struck by a large protoplanet, sometimes dubbed Theia ...

Firefly Aerospace managed to stay upright when it landed on the moon two weeks ago and announced Monday it had completed its ...

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This alignment ensures the entire side of the Moon that faces us gleams under ...

The first time you may have heard the term ‘dwarf planet’ was when Pluto got demoted to one in 2006 (RIP). However, we actually have six in our Solar System. Pluto, Ceres, Makemake, Haumea, and Eris ...

Earth passes in between the moon and the sun and cuts off the sunlight ... While there are planets and moons all over the solar system, only Earth is lucky enough to experience lunar eclipses ...

The Blue Ghost spacecraft, named for a species of firefly, took eclipse chasing to new heights. Not only did it see the Earth ...

The phenomenon happens when the Sun, Earth and Moon line up ... "an amazing way to see the solar system in action". The period when the Moon is completely in Earth's shadow -- called the totality ...

As a large swathe of Earth was treated to the rare sight of the blood Moon during last week's lunar eclipse, one lonely robot far from home caught a very different perspective. From its vantage point ...

The phenomenon happens when the Sun, Earth and Moon line up, causing our planet to cast a giant shadow ... Brown called the ...

Mar. 17, 2025 — The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away ...