Astronomers have long struggled to find young planets hidden inside the thick clouds of gas and dust that swirl around new stars. These swirling clouds—called protoplanetary discs—are the birthplaces ...

Researchers have found evidence that Earth's core is leaking gold and other precious metals, according to a new study. The vast majority (99.9%) of Earth's gold and other precious metals are ...

Although carbon-rich asteroids are common in space, they account for less than 5% of the meteorites that reach Earth. To ...

The inner core, situated 3,000 miles beneath the Earth's surface, is held within the molten outer core. It was previously believed to be a solid sphere.

Of all Earth's layers, the inner core is the most remote and mysterious. This solid sphere of iron and nickel is about 70% the size of the moon, with a radius of approximately 759 miles.

Now, thanks to sharper, deeper observations with ALMA, and unexpected motion data from the Gaia space telescope, that mystery might finally be solved.