In less tumultuous times, more people might have enjoyed the display.
In the early morning of 18 January early-risers were treated to a rare display of nature and technology in the form of clouds which appeared to be swirling like smoke and glowing in colors of red white and blue.
【九州の空に変な雲!?】
— ウェザーニュース (@wni_jp) January 17, 2018
今朝、九州から空に変な雲が!!!という報告が相次ぎました。これはイプシロンロケットの打ち上げによるもの。朝焼けのグラデーションに映り、キレイに見えました。https://t.co/MY9ntx5D8y pic.twitter.com/jv42DCj17W
As the above tweet from WeatherNews explains, this phenomenon was caused by the launch of the Epsilon-3 Rocket. At 6:06, the rocket took off from Uchinoura Space Center in Kagoshima Prefecture and place the ASNARO-2 radar satellite in orbit by 7 a.m.
The Epsilon-3 was planned to launch earlier but delayed due to bad weather conditions. However, it was the lingering moisture in the air which contributed to this elaborate display of contrails over Kyushu.
愛媛の空にも。 pic.twitter.com/0eqGmbG3U9
— たんたんたぬき(またの名をハテナ?)ᐢ⓿ᴥ⓿ᐢ (@6m1OUkrQxQoOco4) January 18, 2018
While the rocket itself travels upwards in a rather steady arc, the zigging and zagging of the resulting clouds is due to a few factors. The main reason is the separation of the three rocket stages which are discarded and fall back down to Earth once they’ve exhausted their propellant.
Winds, the weight of ice crystals, and the viewpoint of the observer can further cause the contrail to appear to be moving in strange directions. The final touch of colors are courtesy of the rising sun.
▼ A time-lapse shot of the launch
イプシロン3号機の打ち上げ後のタイムラプスを作製してみました。思いの外素晴らしい映像になりました!!夜の打ち上げ最高!!!#イプシロン #たちばな天文台 #イプシロン3号機 pic.twitter.com/XJzTm1fhj9
— たちばな天文台 (@tachibanaobs) January 17, 2018
While many were in awe of this example of humanity’s achievement, others were unsettled by rockets flying around leaving unfamiliar patterns in the sky.
https://twitter.com/FiveViolet/status/953829849960861697“It looks like god’s graffiti.”
“Very pretty…”
“Unbelievable!”
“That scared me! I thought it was God coming down.”
“So is Japan playing with ICBMs too now?”
“But I saw a fighter jet contrail too…”
“I was wondering what that was. Thank God now I know.”
There were also some who thought it might have been an example of the “jishin kumo” or “earthquake cloud” theory in which strange cloud formations are considered precursors to seismic activity.
▼ “Good morning, there’s some kind of strange clouds out there. Is it an earthquake cloud?”
おはようございます(●´ω`●)
— レオン (@alfeido) January 17, 2018
何か帯状の変な雲が出てるね(´・ω・`)
地震雲かな?#鹿児島 pic.twitter.com/OtNVvRv0Sh
Sadly, it’s just not as great a time for rockets around here as it used to be. Something about getting woken up in the early morning with warnings of incoming nuclear missiles a few times will do that to a country.
Source: Twitter/@wni_jp, JAXA, Sankei News
Feature image: Twitter/@wni_jp
[ Read in Japanese ]

Amazing “funnel cloud” appears over the sky in Japan 【Video】
Gigantic lightning-spitting thundercloud appears in the skies over Tokyo【Videos】
What’s going on in this crazy beautiful picture of Mt. Fuji?
Super blue blood moon appears over Tokyo, poses with Skytree, other landmarks for beautiful pics
Studio Ghibli store Donguri Republic announces opening of first-ever store in America
Japanese sweets shop sells an ohagi so exquisite it sells out by noon
7-Eleven Japan to start selling Vietnamese banh mi sandwiches this summer
Starbucks Japan releases new Frappuccino, tea and soda drinks for summer
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Forget Tokyo go-karts – there’s a new way to sightsee on four wheels in Japan
Suspected Japanese ice cream cartel under investigation for price-fixing
Studio Ghibli adds new My Neighbour Totoro music box to its anime merchandise store in Japan
All-you-can-eat cheese restaurant in Tokyo is a hidden gem not many people know about
Studio Ghibli releases new anime character fans to keep fans looking and feeling cool this summer
New Japanese overnight train coming to connect Tokyo with Tohoku in sleep-travel style
Universal Studios Japan is giving Frieren anime fans the chance to make unforgettable memories.
Tokyo’s life-size Gundam is getting a new look before its end-of-summer removal
Japanese bento shop touches hearts by selling super cheap boxed lunches for around a dollar
7-Eleven Japan joins the craze for Korean Gamja Cheese Balls
Starbucks Japan releases new limited-edition summer drinks…and a pastry for dunking
Lawson upsizes convenience store food for a limited time with two must-try Japanese meals
Uniqlo reveals third round of massive 100-year-anniversary manga T-shirts for Jump’s Shueisha
Even at twice regular Daiso price, this handy item is still great for summer travel in Japan
New official Ghibli anime food cookbook will teach you how to make Ponyo’s ramen and more
Japanese convenience store Lawson launches new “mini supermarket” chain, L Minimart
Japan’s real-world Pokémon hot spring’s first photos are here![Photos]
Kyoto public junior high school becomes first in Japan with a hoodie school uniform
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
Pokémon and Ikea Japan cross over into each other’s worlds with collaboration events
Wisteria season starts early with blooming of Japan’s Great Wisteria in its beautiful garden