For over forty years, astronomers have been baffled by X-rays from the white dwarf at the center of the Helix Nebula. A white ...

This colorful image of the Helix nebula may mirror what someday could become of our sun and our home planet. Released on ...

That changed in 2006 when the International Astronomical Union declared that the faraway orb was a dwarf planet due to its location, known as the Trans-Neptunian region, according to NASA.

One of these dwarf planets actually orbits in between Mars ... Pluto's diameter is 1,477 miles (2,377km). With both celestial bodies being so similar in size, some consider Pluto and Charon ...

Together, dwarf planets can help scientists learn a lot about ... Miriam Kramer Miriam Kramer worked as a staff writer for Space.com for about 2.5 years before joining Mashable to cover all ...

This image of the Helix Nebula, released on March 4, 2025, shows a potentially destructive white dwarf at the nebula's center ...

Each of the planets, labeled b, c, d, and e, has a mass between 20% and 30% of Earth's, making them among the smallest yet ...

Our home, planet Earth, is part of a system of bodies that orbit a central star – the Sun. This solar system consists of four inner rocky planets and four outer gas giant planets as well as an ...

To do it, he developed a model that simulated an Earth-like planet orbiting a white dwarf. He modeled the orbiting Earth-like planet as the habitable zone devolved, noting how much energy it ...

Hygiea, classified as an asteroid so far, might actually be a dwarf planet. The European Southern Observatory has been able to confirm that Hygiea has a spherical shape. But, Hygiea is missing a ...