Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

The classical picture of star and planet formation suggests that a star’s rotational axis and the orbital planes of its planets should be aligned. However, exoplanetary systems have considerable ...

Hubble reveals the largest planet-forming disk ever seen, Dracula's Chivito, showing a chaotic and uneven environment around ...

The discovery of an extraordinary multi-planet system has demonstrated that so-called "hot Jupiter" planets may not be lonely giants after all. The findings could force scientists to revise their ...

When you look up at the night sky, planets seem calm and fixed. But a new study shows that nearby planetary systems can be ...

An artist’s impression of the two new planets discovered. An inner super-Earth, here seen transiting in front of the orange host-star and an icy giant planet on the periphery of the system. The ...

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

A view of HOPS-315, a baby star some 1,400 light-years from Earth where astronomers have observed evidence for the earliest stages of planet formation. Combined with data from the James Webb Space ...

Astronomers have confirmed a giant planet orbiting a tightly bound pair of young stars, marking a first in direct exoplanet imaging. The planet, known as HD 143811 AB b, is the closest-in world ever ...

For the first time ever, scientists detect snow-like ice in deep space, surrounding a newborn planetary system and reshaping ...