This tiny, sizzling exoplanet could be made of molten iron
The newfound planet is smaller than Earth, as dense as iron and hot enough to melt
![illustration of exoplanet GJ 367b next to a glowing red star](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2021/12/120121_lg_ironplanet_feat.jpg?fit=1030%2C580&ssl=1)
Exoplanet GJ 367b, shown in this artist’s illustration, is as dense as iron and close enough to its star that its surface may be molten.
SPP 1992 (Patricia Klein)