Astronomers have made an exciting discovery—a massive spiral disk galaxy, much larger than expected, in the early universe.

An international team has discovered a giant spiral disk galaxy in the early cosmos which is three times larger than similar ...

That's because, serendipitously, Earth's position in space allows us to view the star's disk edge-on. Imagine holding a dinner plate in front of you, if the side of the plate is eye-level with you, ...

The simple name of the df utility is short for disk free. It does one thing, and does it well. It will tell you the size of a ...