Planets, like those in our solar system, form in a bottom-up process where small bits of rock and ice clump together and grow larger over time. But the heftier the planet, the harder it is to explain ...

The Artemis II mission, which took four US astronauts around the Moon and to a record-breaking distance from Earth, was a ...

Sulfur on Mercury was as important to the planet's formation as oxygen was to Earth's evolution, the study suggests.

Next summer, Balmer will continue these inquiries as they and their Northwestern host, Assistant Professor Jason Wang, plan ...

The Hubble Space Telescope time-lapse captured footage of Jupiter, Saturn, Uranus and Neptune. Credit: SCIENCE: NASA, ESA, ...

The universe is at it again; scientists have been baffled by a discovery that turns all the knowledge they have on planetary ...

Dying stars may be wiping out nearby giant planets as they expand into red giants. Astronomers found that these close-in planets become increasingly rare around more evolved stars, suggesting many ...

The Paranal solar ESPRESSO Telescope (PoET), installed at the European Southern Observatory's (ESO's) Paranal site in Chile, ...

Far beyond the reach of any spacecraft, a distant world glows with heat so intense that rock itself turns to vapor. In that ...

Researchers have found that Mercury's low-iron, high-sulfur chemistry allows its magma to stay liquid at lower temperatures ...

From scorching planets to frozen giants, our solar system is full of extremes. Discover the forces that shaped these worlds and what they reveal about our place in the universe.