A massive crater has been discovered in China, which is reported to be around 900 meters or 2950 feet in size. The discovery of this crater is said to have significant implications for our understanding of the earth's recent geological history, with some reports suggesting it was formed by an asteroid strike around 10,000 years ago. However, there is some uncertainty as reports also mention lunar craters and other unrelated geological formations, making it unclear if the Chinese crater is the only one being referred to.