|
Mars brighter in 2018 than since 2003 | | In 2003, Mars was closer and brighter in our sky than in nearly 60,000 years. In 2018, Mars will be at its brightest since then! Start watching Mars now. | | |
Friday FAQ: What is radiocarbon dating? | | At a very steady rate, unstable carbon-14 gradually decays to carbon-12. The ratio of these carbon isotopes reveals the ages of some of Earth's oldest inhabitants. | | |
|
No comments:
Post a Comment