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A year in a day: Ultracool dwarf star system breaks record
A year in a day: Ultracool dwarf star system breaks record,What was once thought to be just one star is actually two. What's more, the two stars are so close that they've broken a record for being the tightest ultracool binary system ever observed, revolving around each other in less than an Earth day.

A year in a day: Ultracool dwarf star system breaks record

What was once thought to be just one star is actually two. What's more, the two stars are so close that they've broken a record for being the tightest ultracool binary system ever observed, revolving around each other in less than an Earth day.