It is a ditch.
A burrow is a tunnel or hole dug in the ground by an animal for habitation or shelter. A hole is simply an opening or hollow place in a surface. While a burrow is typically dug by an animal for living, a hole can be formed naturally or by human activities.
The two possible reasons the last hole is about to be dug could be for construction purposes or for planting a tree.
The deepest hole dug into the Earth is the Kola Superdeep Borehole in Russia, which reaches a depth of about 7.5 miles (12 kilometers). However, digging deeper becomes increasingly difficult due to extreme heat and pressure in the Earth's mantle. Currently, technology limits us to only scratching the surface of the Earth's crust.
The dug a hole to see if they could find anything interesting in the ground.
No. Nobody has ever been to Neptune. Also, Neptune is a gas planet. There is no solid surface to dig a hole in.
Trench / Bunker
Trenches or bunkers
On the opposite side on America some big group dug a hole in the ground trying to go inside the Earth popular poll sites say it was the furthest dug hole in the groud in Earth.
If you dug a hole 592 kilometers deep, you would reach the upper part of the Earth's mantle, which extends from the crust to about 2,900 kilometers beneath the surface. You would not reach the Earth's outer core, which starts at a depth of about 2,900 kilometers.
Pit, trench or void are some names you could use.
In the Indian Ocean.
A shaft is a hole dug in a mine.
Half a hole cannot be dug as it will always be a hole. However, to dig a hole half the size of the ones dug, It takes one woman one day to dig half a hole.
No one never dug a hole that deep before
Scientists have not dug a hole to the center of the Earth because of extreme heat and pressure at those depths. It is currently not technologically possible to dig that deep and sustain human life. Additionally, the costs and risks involved in such a project make it unfeasible.
Artesian water come from a well the is dug in the earth..when the well is dug, the internal pressure from the hole causes the water to burst forth spontaneously from the well like a fountain.
The past tense of "dig" is "dug." For example, "Yesterday, I dug a hole in the garden."