| A light year is a convenient means of distance measurement because conventional means in miles or kilometers is so large as to thwart true appreciation. |
| A light year equals about 9.5 trillion kilometers. |
| A short distance, to be sure, but at the time it felt like a light year. |
| An international team of scientists has used the 8-m Gemini North telescope to produce a dramatic view of the core of the Milky Way Galaxy, about 24,000 light year distant. |
| A light year is a distance, not a time, and this has been corrected to say 13.7 billion years old. |
| Neutrinos are ghostly particles that can travel through a light year of lead and they have no problem escaping directly from the core of a supernova. |
