Assumptions about how stellar-mass black holes create their highest-energy light have been confirmed by the recent study by NASA astronomers, John Hopkins University and the Rochester Institute of Technology.
Lead scientist Jeremy Schnittman, an astrophysicist at
This morning at 08:05 UTC, sunspot 1263 produced an X6.9 solar flare, the third X-flare of new Solar Cycle 24 and the most powerful so far. NASA's Solar Dynamics Observatory captured the explosion's extreme ultraviolet flash:The brunt of the ex
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