Category
page 12016 in outer space
Planet Nine
hypothetical large planet in the far outer Solar System
GW150914
gravitational wave event
Q25390546
star in the constellation Cancer
GW151226
GW151226 was a gravitational wave signal detected by the LIGO observatory on 25 December 2015 local time (26 Dec 2015 UTC). On 15 June 2016, the LIGO and Virgo collaborations announced that they had verified the signal, making it the second such signal confirmed, after GW150914, which had been announced four months earlier the same year, and the third gravitational wave signal detected.
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