Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define ...

Modern astronomy is giving us unprecedented views of the asteroids, comets, and other small bodies that litter our cosmic ...

There are no confirmed exomoons, moons orbiting distant exoplanets in other solar systems. There are a few candidates, but ...

Researchers at McGill University and collaborating institutions have mapped the atmospheric features of a planetary-mass ...

Coloe Fossae was shaped by powerful tectonics, which stretched and cracked Mars's crust, causing chunks of ground to collapse ...

The findings could change how we view planetary systems in their afterlife. A white dwarf star has been caught in the middle of consuming a planetary relic, offering fresh clues as to what happens to ...

Astronomers recently peered deep into space and found that an old, faint white dwarf named LSPM J0207+3331, located about 145 light-years away, is still consuming the rocky remains of its former ...

A 3-billion-year-old white dwarf, the core of a dead star, consumed an exoplanet from its former planetary system. Credit: NASA / ESA / Joseph Olmsted illustration A dead star core about 145 ...

Makemake, discovered in 2005, orbits the Kuiper Belt nearly 6.8 billion kilometers from the Sun and is one of the brightest objects in the outer Solar System, reflecting more than 70% of the sunlight ...