The heavy steam had a great effect on the laser, and if it weren't for the steam blocking the beam, it wouldn't have taken more than an hour to penetrate the ice.

The laser also heats the steam, which melts the ice at the entrance and slowly expands it.

A minute later, another turret joined the fire, but the two had different targets, the laser beams landed at different points, and the distance between the two ice caves was about a hundred meters.

The deeper the ice cave, the higher the steam flow, and before long, the steam column was more than ten kilometers high, and it was spectacular from a distance.

Because this time it was four lasers to make a hole, the efficiency was much higher than before, and after about forty minutes, the steam gushing out of Cave No. 2 rose sharply, twenty kilometers, thirty kilometers, and in the blink of an eye, it exceeded one hundred kilometers.

Ye Han immediately ordered a ceasefire, and when the laser just stopped, the steam spewed out of the hole was still steam, and it didn't condense into Xiaoice particles until it rushed into the sky, but it didn't take long for the solar term to turn into flocculent ice feathers, they flew up to the sky flutteringly, and then slowly fell like snowflakes, looking like a very mysterious feeling.

The geysers on Europa are called plumes because they spew flocculent ice feathers.

Ye Han looked at the No. 2 hole and was speechless for a while, the intention of hitting the two holes was originally to open one and the other could stop in time, but he never thought that the No. 1 hole did not move, and the No. 2 hole, which was one step later, was passed first.

Ye Han immediately reported the situation to the flagship, and after receiving the order to proceed as planned, the two battle groups immediately left the ship in the Swift, and soon fell between the two ice caves.

After leaving the Swifts, a group rushed to Cave No. 1 first, and the warriors took the ice cave as the center, made a hole four fingers thick in a cross shape, and stuffed several telescopic rods into the hole, and the heads of the rods were connected together above the hole to form a simple hanger.

A miniature winch is then hung on a hanger, and the winch is wrapped with high-strength fibers with thick threads of sewing threads.

Finally, the fighters attached a drone to the thread, activated the winch, and the drone slid into the ice cave at a constant speed...... The next thing is to wait for the drone to hit the bottom.

The battle group in charge of the second hole was not so smooth, the fighters approached the second hole and realized that the air flow gushing out of the hole was much stronger than expected, and a fighter planned to test the wind strength with his hands, but as soon as his hand touched the air flow, his arm suddenly raised uncontrollably, and then the whole person was carried up by his arm and flew up, and he was thrown high for more than 100 meters before falling again, if he hadn't started the aircraft in time, at least he would have fallen a few hundred meters away.

The second group from the team leader to the team members were all dumbfounded, and the team leader immediately contacted the Leishan after coming back to his senses: "Bridge and bridge, I am the second group, the air flow is too strong, and the drone can't put it down at all!" ”

Nonsense, the height of the air column is more than 100 kilometers at the moment, and the entrance of the cave is the place with the highest air flow intensity, so it's no wonder that the drone can put it down.

The second team leader soon received instructions from the bridge: "Think of a way, is there anything that sinks and throws it down with the drone?" ”

The second team leader was embarrassed: "Even the people are flying, I really can't find anything suitable here, is there anything on the ship?" ”

"So strong?" Luo Qi looked at Ye Han in surprise, "Boss? ”

Ye Han was also embarrassed, and pondered hard, but he never came up with a suitable solution.

It's easy to seal Cave 2, but it's hard to get a drone into it without destroying the ice cave.

He Lu cautiously suggested: "Or, wait a little longer, wait until the airflow is weaker?" ”

Ye Han's head was big for a while: "Luo Qi, report the situation to the flagship, please give me." ”

Luo Qi complied, and soon received a reply: "Report, boss, the flagship said, let us figure it out ourselves." ”

The big head turned into a headache, Ye Han thought for a while and said, "You say, if you get a missile, can you fall by yourself?" ”

Several people couldn't help but look at each other when they heard this, and no one dared to talk nonsense, and finally Luo Qi broke the silence: "I think it's best to have a small volume and large mass, and the shape is also very important, and it is best to have an aerodynamic shape with low resistance." ”

Ye Han was about to go crazy: "Where do you let me find this thing?" ”

Even if you do it right away, it will take time, but I am afraid that before the things are ready, the ice cave will freeze first.

He Lu persuaded: "Or just wait, anyway, the flagship doesn't set the time, and I don't think it's a bad thing that the air flow is strong." ”

Ye Han glanced at He Lu in surprise: "How do you say it?" ”

He Ludao: "Since it's not easy to go down, then think about it the other way, isn't it easy to come out?" After the person goes down, he seals the ice cave, and when he wants to come out, he directly blows the ice cave open, and the air flow blows the person out directly, and there is no need to climb out by himself. ”

Ye Han couldn't help laughing: "It's good what you think, but this matter is not so simple, the strong airflow at the entrance of the cave is because the ice cave area is small, and it depends on the specific situation when you really get to the cave." ”

That being said, his mood was not so entangled.

Just wait, wait and you won't get pregnant!

However, the weakening of the air flow means that the ice cave is about to be sealed, and the drone must be put down before the ice cave is completely sealed.

In order to prevent accidents, Ye Han ordered the second group to be prepared and act immediately as soon as they found an opportunity.

The timing came faster than expected, and after only ten minutes or so, the second group sent back the news that the airflow had weakened, but the drone could not be put down for a while and a half.

In order to complete the task as soon as possible, the soldiers of the second group used laser guns to cut a piece of ice, repaired the ice into the shape of a missile, and then fixed the drone on this model of a missile made of ice.

Due to the lack of accurate measurement tools, the two groups could not grasp the exact strength of the air flow, and in order to prevent missing the opportunity, they tied a special snap to the missile model with high-strength fibers, and several people grabbed the ice missile, put it above the hole, and let the air flow blow the missile up like a kite.

At first, several people had to hold on to the high-strength fibers, but after a while, they didn't need so much strength, and after a while, there was only a balance between the air flow and the ice missile.

The second team leader couldn't wait, so he simply got a longer ice missile, fixed the other drone, and then stuffed the ice missile into the ice cave, and the ice missile slid smoothly into the ice cave.

Only a dozen seconds later, when the kite was flying, the ice missile also fell into the ice cave on its own.

Ye Han finally saw the situation in the No. 2 cave, there were straight ice caves that could not be seen at a glance, and the left and right were ice flakes that were staggered like floating lights, looking at the camera, there was an illusion that he was falling into a bottomless abyss and would never be able to touch the end.