We present the second coin of the ” Universe ” series, which depicts unusual elements of the cosmos. This time the coin focuses on the theme of a black hole. A black hole is a region of space-time which, due to the influence of gravity, nothing – including light and information – can leave. General Theory of Relativity. It requires the accumulation of a sufficiently large mass in a sufficiently small volume in order to form. The black hole is surrounded by a mathematically defined surface called the. Which marks the boundary of no return. It is called “black” because it completely absorbs light hitting the horizon, reflecting nothing. As black holes cannot be observed directly, their presence is inferred from their interaction with surrounding matter and with light and other types of electromagnetic radiation. The reverse of the coin shows a colourful representation of the appearance of a black hole. A real piece of meteorite is placed in the centre of the coin. The reverse of the coin is concave, which imitates the absorption of the surroundings by a black hole. The mintage of the coin is limited to 500 pieces only. The coin comes packed with a c ertificate of authenticity in an elegant wooden box. 2021 Niue Universe Series Black Hole 2oz Silver Antiqued Coin. We present the second coin of the “Universe” series, which depicts unusual elements of the cosmos. According to the General Theory of Relativity, it requires the accumulation of a sufficiently large mass in a sufficiently small volume in order to form. The black hole is surrounded by a mathematically defined surface called the event horizon, which marks the boundary of no return. The coin comes packed with a certificate of authenticity in an elegant wooden box. Sorry, our items are NOT available for pick-up. No additional information at this time. You might also like. 2020 Great Britain James Bond 007 Pay Attention 2oz Silver Proof Coin. 2020 Macau Lunar Year of the Rat Colorized 1 oz Silver Proof Coin – 8,000 Made. 2021 Macau Lunar Year of the Ox Colorized 1 oz Silver Proof Coin – 8,000 Made. 2020 Tanzania Rare Wildlife Grizzly Bear 2oz Silver Proof Coin. This item is in the category “Coins & Paper Money\Bullion\Silver\Coins”. The seller is “grreserve” and is located in this country: US. This item can be shipped worldwide.

• Certification: Certified by the Mint
• Circulated/Uncirculated: Uncirculated
• Denomination: $5
• Type: 2oz Silver
• Unit of Sale: 1
• Year: 2021