New observations suggest that the dwarf planet Makemake is surrounded by faintly glowing methane gas. Scientists are unsure ...

In its youth, the dwarf planet Ceres may have brewed a chemical banquet beneath its icy crust.

"The profile of the occultation was most consistent with it being a new satellite — a new moon — going around Quaoar." ...

In May 1964, Arno Penzias and Robert Wilson were testing how radio waves bounced off balloon satellites developed by Bell ...

Ceres, the only dwarf planet in our inner solar system, is covered in ice and salt deposits. Its daytime temperatures range from a frigid minus 136 degrees to minus 28 degrees Fahrenheit. “Looking at ...

New research from NASA has found that the dwarf planet Ceres may be another place to look for evidence of primitive life in ...

Here, the 'ice volcano' does not erupt molten rock, but rather 'ice magma' formed from a mixture of water ice, liquid brine, ...

Scientists have discovered methane gas on the dwarf planet Makemake, a finding that has surprised astronomers studying the outer solar system.

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 ...

Initially, scientists were filled with speculation about the composition of Ceres' bright spots, with many believing they could be water or common salts. NASA's Dawn spacecraft, which began its ...

The month is packed with skywatching highlights—including two galaxies visible to the naked eye and a rare glimpse of the ...

Methane gas may signal an atmosphere or geological activity on a distant dwarf planet located at the outer edge of the Solar System. A research team led by the Southwest Research Institute has ...