Mars is half the size of Earth and has only a tenth of its mass, but a new study shows that even such a "lightweight" planet ...

Yet, in the oceans, not all viruses are bad news. Some play a helpful, even critical, role in sustaining marine life. In a ...

Have you ever wondered why Earth goes through massive climate swings, from freezing ice ages to warmer periods like today?

At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. And yet, new research reveals the extent to which Mars ...

Today, science can narrow down potential oil reserves with surprising accuracy — especially when it comes to shale oil, found ...

Among other things, the James Webb Space Telescope is designed to get us closer to finding habitable worlds around faraway ...

Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...

Pluto, once considered the ninth planet, was reclassified as a dwarf planet in 2006 because it shares its orbital path with ...

"We're not saying, and we can't say, that there's no life in Europa. What we're saying is that it's a harder proposition, ...

Earth’s Rotation Day, observed on January 8, marks Léon Foucault’s 1851 pendulum experiment proving Earth’s rotation. Know ...