First artificial crater on Moon - Latest Current Affairs for Competitive Exams

Question: Which country recently builds the first artificial crater on the Moon?
(a) China
(b) France
(c) Japan
(d) Russia
Answer: (c)
Related facts:

Japanese scientists have succeeded in creating the first-ever artificial crater on an asteroid.
This is a step towards questing on how the solar system evolved.
It was announced just after the Hayabusa2 probe fired an explosive device at the Ryugu asteroid earlier this month for blasting a crater on the surface and trying to know about the origin of Life.
On 5 April, the Japanese probe released a 14kg device packed with plastic explosive towards the asteroid Ryugu.

Artificial crater:

Yuichi Tsuda, Hayabusa2 project manager at the Japanese space agency (JAXA), confirmed the crater from images captured by the probe located 1,700 metres (5,500 feet) from the asteroid’s surface.
NASA’s Deep Impact has succeeded earlier in creating an artificial crater on a comet in 2005 which was only for observation purpose.
The images showed crater 10 metres in diameter.

One of the first:

Japanese space agency scientists had predicted that the crater could be of 10 metres in diameter if the surface was sandy or three metres if the surface was rocky.
The surface was filled with boulders and yet a big crater was created. This could mean there’s a scientific mechanism unknown till now or something special about Ryugu’s materials.

Dragon Palace:

The aim of this crater on Ryugu is to throw up “fresh” material from under the asteroid’s surface which will give information about the early stages of the solar system.
The asteroid is speculated of having relatively large amounts of organic matter and water from some 4.6 billion years ago, the time this solar system was born.
Ryugu means “Dragon Palace” in Japanese and refers to a castle at the bottom of the ocean in an ancient Japanese tale.
The photo show the asteroid has a surface which is rough and full of boulders.