This picture shows the Hope Diamond, a blue diamond, surrounded by other white diamonds.
Click on image for full size
Diamonds are Ancient History!
News story originally written on September 12, 2002
Diamonds are the hardest things on Earth. They make sparkling jewelry and saw blades that can cut through anything. Diamonds form deep within the Earth's mantle layer from stuff called carbon that is under pressure from the heavy rocks above it.
Scientists have found that all diamonds are really old! They discovered that there were only three times during Earth’s history when diamonds were made and that Earth no longer makes diamonds like it used to.
The oldest diamonds were made 3.3 billion years ago when Earth was rather young. The second time diamonds were made was 2.9 billion years ago. The youngest diamonds on Earth are still very old. They are 1.2 billion years old but a few smaller diamonds are only about 100 million years old.
Shop Windows to the Universe Science Store!
Our online store
on science education, classroom activities in The Earth Scientist
specimens, and educational games
You might also be interested in:
It was another exciting and frustrating year for the space science program. It seemed that every step forward led to one backwards. Either way, NASA led the way to a great century of discovery. Unfortunately,...more
The Space Shuttle Discovery lifted off from Kennedy Space Center on October 29th at 2:19 p.m. EST. The sky was clear and the weather was great. This was the America's 123rd manned space mission. A huge...more
Scientists found a satellite orbiting the asteroid, Eugenia. This is the second one ever! A special telescope allows scientists to look through Earth's atmosphere. The first satellite found was Dactyl....more
The United States wants Russia to put the service module in orbit! The module is part of the International Space Station. It was supposed to be in space over 2 years ago. Russia just sent supplies to the...more
A coronal mass ejection (CME) happened on the Sun last month. The material that was thrown out from this explosion passed the ACE spacecraft. ACE measured some exciting things as the CME material passed...more
Trees and plants are a very important part of this Earth. Trees and plants are nature's air conditioning because they help keep our Earth cool. On a summer day, walking bare-foot on the sidewalk burns,...more
There is something special happening in the night sky. Through mid-May, you will be able to see five planets at the same time! This doesn't happen very often, so you won't want to miss this. Use the links...more