New discoveries and fresh looks at familiar worlds show how far exoplanet science has come — and how much remains unknown. When you purchase through links on our site, we may earn an affiliate ...

Nearly 300 years after Immanuel Kant proposed that our solar system’s family of planets condensed from a flattened disk of gas and dust, NASA’s Hubble Space Telescope revealed that such planetary ...

Astronomers are once again questioning whether our solar system is complete. Subtle gravitational effects suggest something large may be hiding far beyond the known planets. It hasn’t been directly ...

Astronomers have uncovered a massive hidden planet and a rare “failed star” by combining ultra-precise space data with some of the sharpest ground-based images ever taken. Using the Subaru Telescope ...

One of the primary goals of the James Webb Space Telescope (JWST) is to detect atmospheres around exoplanets, to try to suss out whether or not they could potentially support life. But, in order to do ...

An artistic representation of exoplanet PSR J2322-2650b, on the left, and the pulsar it orbits, on the right NASA, ESA, CSA, Ralf Crawford (STScI) A lemon-shaped exoplanet residing far beyond the ...

Astronomers just witnessed the aftermath of something rarely seen: a fresh dust cloud from a cosmic collision around a nearby star, and then another one appearing in nearly the same spot. Twenty years ...

Astronomers using the James Webb Space Telescope have discovered an astonishing exoplanet that’s stretching our understanding of what’s possible for these distant worlds. And when we say say “stretch, ...

A sampling of aging Sun-like stars demonstrates that they likely eat their closest planets. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. This ...

If Earth-like planets require an extremely rare supernova encounter, then water-depleted rocky planets might be exceptional. But if cosmic-ray immersion is sufficient—and common—then the conditions ...