Decades of constant X-ray emission from the Helix Nebula’s white dwarf suggest debris from a Jupiter-sized planet steadily rains upon the star.

New research is reshaping how scientists understand the earliest days of Earth’s formation—suggesting that the deep interior ...

A planetary nebula is a star in its late stage that has shed its outer layers, leaving behind a small dim star at its center known as a white dwarf, explains the Chandra X-ray Center (CXC ...

The Helix Nebula is a so-called planetary nebula, which is the late stage of a star that has ejected its outer layers of gas and left behind a dimmer and smaller ember of a star known as a white ...

Using the James Webb Space Telescope (JWST), astronomers have observed enigmatic rings in the planetary nebula NGC 1514, visible in the mid-infrared band. Results of the new observations ...