New planetary formation models from Carnegie’s Alan Boss indicate that there may be an undiscovered population of gas giant planets orbiting around Sun-like stars at distances similar to those of ...

The discovery of a planet that is far too massive for its sun is calling into question what was previously understood about the formation of planets and their solar systems. The discovery of a planet ...

For the first time in years, astronomers are seriously talking about adding a new member to the solar system’s planetary ...

The Sun, our nearest celestial neighbor, is undeniably a star, not a planet, as centuries of astronomical observations have confirmed. However, the boundaries of celestial definitions are continually ...

A recent astronomical discovery has shaken long-held beliefs about how planets form. For decades, scientists thought that stars much smaller than our Sun couldn't form giant planets. That theory just ...

Astronomers have spotted a cosmic mismatch that has left them perplexed — a really big planet orbiting a really small star. The discovery defies current understanding of how planets form. The star is ...

Astronomers at the University of Arizona’s Steward Observatory, led by Kevin Wagner, have identified evidence for a potential gas giant orbiting Alpha Centauri A, our nearest sun-like neighbor. While ...

Can rocky exoplanets orbiting stars smaller than our Sun support life as we know it? This is what a recent study published in Nature Communications hopes to address as an international team of ...

This video is an artistic representation of a newly discovered system, LHS 3154, which contains a planet far more massive for its sun than current models would predict. UNIVERSITY PARK, Pa. – The ...