A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...

A team of researchers from the University of Zurich and the NCCR PlanetS is challenging our understanding of the solar system ...

The two outermost planets in the solar system are generally considered ice giants, yet we know little about their interiors.

For every rule in the cosmos, there is a spectacular exception. While most planets orbit in a neat plane, Pluto tumbles at a ...

Astronomers have produced the first continuous, two-dimensional maps of the outer edge of the sun's atmosphere, a shifting, ...

An idea about the sun’s magnetic field called the terminator model could help predict dangerous space weather more accurately ...

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of Earth’s mantle and ejecting a huge debris disk that later formed the moon.

Our Sun is about halfway through its life, which means Earth is as well. After a star exhausts its hydrogen nuclear fuel, its ...

Like a toddler right before naptime, TRAPPIST-1 is a small yet moody star. This little star, which sits in the constellation Aquarius about 40 light-years from Earth, spits out bursts of energy known ...

The mystery of the Earth and Moon’s similarity Early models of the Moon’s formation predicted that the Moon should mostly consist of Theia’s material. But scientists noticed a puzzle: Earth and the ...

Across the galaxy, astronomers now see that planetary systems fall into four broad classes, and our own solar system, part of the rare Ordered group, is only one of them. At the same time, discoveries ...

Interstellar comet 3I/ATLAS, the third visitor of its kind, has sparked controversy. Explore its hyperbolic orbit, unique ...