Pluto

Twitter 2015-07 news peaked Updated 2026-02-10
Late 2010s Notable 50M+ lifetime posts

First documented in July 2015 on Twitter. Reached peak activity at an earlier point and has since moderated to lower-frequency use.

Also known as: PlutoFlybyNewHorizons

#Pluto

NASA’s New Horizons spacecraft’s historic flyby of Pluto, revealing the dwarf planet’s heart.

Quick Facts

AttributeValue
PeakJuly 14, 2015
EventFirst Pluto flyby
MissionNew Horizons
DiscoveryHeart-shaped glacier on surface

Origin & Impact

When New Horizons flew past Pluto on July 14, 2015, #Pluto trended worldwide as NASA released stunning images of the dwarf planet for the first time. The heart-shaped Tombaugh Regio glacier captured imaginations, making Pluto unexpectedly lovable. The mission achieved what seemed impossible—a 9.5-year journey to photograph a world three billion miles away.

#Pluto reignited public excitement about space exploration and debates about planetary status (Is it a planet? Still bitter about 2006 demotion?). The mission demonstrated NASA’s ability to capture public imagination through social media, with playful tweets and gorgeous images. Pluto the underdog planet got its moment to shine.

References

Explore #Pluto

Related Hashtags

2007 2020 #Pluto 2015 #NASA 2007 #PremierLeague 2011 #NaturallyAspir… 2013 #AceFamilyScand… 2019 #21SavageICE 2019 #SPACMania 2020
Related hashtags by year of first appearance — circle size reflects lifetime volume, fade reflects how active each tag still is.