A once-massive star that's been transformed into a small planet made of diamond: that's what astronomers think they've found in our Milky Way.

Back to Article List A planet made of diamond Pulsar observations reveal that this planet was likely once a massive star in the millisecond pulsar binary system.

The curious minds at What If imagine life on a pulsar planet and how its intense conditions could reshape existence.

The first planet discovered outside our solar system orbits a dead pulsar star.

The astronomers will also make their planet-hunting algorithms publicly available so that other scientists can analyze their own databases for pulsar worlds, he adds.

Since our home planet is the only one we know of that supports life, we can narrow down the search for other potentially habitable worlds by looking for similar conditions elsewhere in the universe.

Artist impression of the pulsar-planet system PSR B1257+12 detected in 1992. The pulsar and three radiation-doused planets are all that remains of a dead star system.

The planet—most likely made of carbon crystals—is a former star that got transformed by its orbital partner, a new study says.

The first confirmed exoplanetary system is so bizarre that astronomers haven't found another like it in 30 years.

This indicates that the formation process for pulsar-planet systems is vastly different than traditional star-planet systems.

Finding a planet around another star was a revolutionary discovery in itself, but finding one around a pulsar was even weirder. "You couldn't imagine a worse environment to put a planet around ...