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A comment on A Binary Star Is About to Go Supernova and Could Produce a Gamma-Ray Burst. Parent comment

Re:A Binary Star Is About to Go Supernova and Could Produce ... by btilly on Tuesday November 20, 2018 @02:13PM (#18496736)
The issue is that "now" is not well-defined since it depends on the reference frame. Therefore what we consider "already happened" another observer may consider "still in the future".

All observers will agree on the order of events if and only if the light from each event traveled to the next before the next happened.

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Re:A Binary Star Is About to Go Supernova and Could Produce ... by sctb on Tuesday November 20, 2018 @04:11PM (#18497770)
Most of your comments break the guidelines by being uncivil and/or unsubstantive, so we've banned the account. If you'd like to start using the site as intended you're welcome to email us at [email protected].
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