At a frigid -125 degrees Fahrenheit (-87 degrees Celsius), WD 1856+534 b is the coldest planet ever directly observed, ...

WD 1856+534b—a freezing world with a surface temperature of -125 degrees Fahrenheit—exists where planets are normally scoured ...

What's more, no exoplanets with emission spectra cooler than 275 K (1.85 °C; 35.33 °F) - comparable to Earth - have been observed either. WD stars present a unique opportunity to detect and ...

This planet has turned out to be the coldest known to date. An international team led by astronomer Mary Anne Limbach observed the planet with the Mid-Infrared Instrument (MIRI) of the James Webb ...