ESA has launched three other Proba missions thus far, with one currently observing the Sun. Proba-2 launched in 2009, and was ...

A flurry of solar storms suggests the sun is in a period of maximal activity, so more auroras could be in store. Next month, ...

Earth has a magnetic field because there’s molten iron in its core. As the liquid metal moves and flows, it makes a giant ...

Pumping an unimaginable amount of groundwater out of the earth is why Earth has tilted over two dozen degrees, a study found.

The mini-moon 2024 PT5, which has been orbiting Earth for two months and is likely a chunk of the moon, will now drift away ...

Gerald Navratil, a professor of plasma physics at Columbia, on the pursuit by start-ups for clean, unlimited power. Page A6.

Earth is parting company with an asteroid that's been tagging along as a “mini moon" for the past two months. The harmless ...

An outburst of solar energy looks primed to hit Earth on Thursday, potentially bringing auroras to the northern U.S. on ...