A light-year is the distance light can travel in one Earth-year. One light-year is about 5.88 trillion miles (or 9.46 trillion kilometers). You May Also Like. ... In astronomy, looking farther ...

Emirates Astronomy Society achieves a historic milestone by photographing the Crescent Nebula, 5,000 light-years away, ...

A rare Jupiter-sized planet AT2021uey b was found 3,200 light-years away using microlensing, a method based on Einstein's ...

Exoplanet K2-18b keeps teasing signs of alien Life 120 light-years away. In 2015, astronomers discovered the planet K2-18b orbiting a red dwarf star about 120 light-years from here.

The shattered star at the center was once a white dwarf, a stellar ember no larger than Earth, yet almost as heavy as the Sun ...

The explosion of a star, called a supernova, is an immensely violent event. It usually involves a star more than eight times ...

In a stellar nursery 460 light-years away, astronomers sharpened old ALMA data and spotted crisp rings and spirals swirling ...

The Vera C Rubin observatory, home to the world's most powerful digital camera, promises to transform our understanding of ...

Group 15, a nearby group viewed 1.5 billion light-years away, shows the mature form of galaxy associations in the present-day universe—observed as they were 12.3 billion years into cosmic time.