A fresh study of the Kuiper Belt’s structure has revived that far-out question, pointing to a possible Earth-sized ...

What can white dwarf stars eating their own planets teach astronomers about planetary and solar system formation and ...

Our solar system is much like a trail of microcosmic breadcrumbs: Follow the molecular bits as far back as they go, and you'll learn a thing or two about where many of our planets and other celestial ...

A potentially habitable planet, eerily similar to Earth, has been discovered after two decades of painstaking astronomical ...

The destroyed planet has spewed material onto the white dwarf's surface, with astronomers detecting 13 different elements ...

The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.

Scientists have detected methane gas glowing faintly above Makemake, an icy dwarf planet smaller and farther than Pluto in space. Until now, Pluto was the only object that far out in the solar system ...

Astronomers recently peered deep into space and found that an old, faint white dwarf named LSPM J0207+3331, located about 145 ...

Astronomers using data from the W. M. Keck Observatory on Maunakea in Hawaiʻi Island have identified a rare, ancient ...

New observations suggest that the dwarf planet Makemake is surrounded by faintly glowing methane gas. Scientists are unsure if the gas is contained within a wispy atmosphere or being ejected into ...

In approximately 5 billion years, the sun will deplete its hydrogen fuel and collapse under its own gravity, becoming a white ...

Scientists found 13 heavy chemical elements polluting the atmosphere of the star named LSPM J0207+3331, which is located ...