Around this time of year, if the weather is clear, just before dawn you might be able to see Sirius, the brightest looking ...

Before defining what a light-year is, we should define what a light-year is not: It is not a measure of time, but rather a ...

Saturn rises around midnight, and Venus around 2 a.m. Jupiter is low in the east before dawn; Venus is brighter and whiter.

Researchers studied the L 98-59 system and confirmed five rocky planets. One is in the habitable zone and may support liquid water.

The newfound exoplanet, called Kepler-139f, is a gigantic world roughly twice the mass of Neptune and 35 times the mass of ...

Astronomers have, for the first time, observed the very beginning of planet formation around a star beyond our Solar System.

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to oblivion ...

"We will never witness the formation of Earth, but here, around a young star 440 light-years away, we may be watching a ...

Astronomers have discovered the earliest seeds of rocky planets forming around a baby sun-like star. They reported Wednesday ...

In a cosmic first, scientists watched planet-forming materials begin to solidify around a newborn star, offering a peek into ...

A team led by UdeM researchers confirms a fifth potentially habitable planet around L 98-59, a red dwarf 35 light-years away.

Stars are the fundamental building blocks of our universe. Most stars host planets, like our sun hosts our solar system, and ...