Αποτελέσματα Αναζήτησης
From its fiery birth in a stellar nursery billions of years ago to its eventual demise as a red giant, discover the secrets of our Sun’s evolution. How did the Sun come to be? What forces...
21 Μαρ 2014 · Royal Observatory Greenwich astronomer Brendan explains how we determine the age of our Solar System from space rocks and how we can work out how long the Sun has left before it engulfs the...
The evolution of our Sun. The life of the Sun plays an important role in “The Dynamic Universe” research theme of CAASTRO, the Australian Centre for All-sky Astrophysics. Our solar s...
25 Μαΐ 2021 · If our Sun is four and a half billion years old, how much longer will it shine? Stars like our Sun burn for about nine or 10 billion years. So our Sun is about halfway through its life.
4 ημέρες πριν · The young Sun, just like the young Earth, was very different than it is now. The Sun creates all of that light and heat through a process called “nuclear fusion”; that’s where atoms of one element are turned into atoms of another element (they’re fused together!).
Lugaro is studying how nuclear reactions inside stars produced the chemical matter that builds up our Sun, planets and bodies. To look back 4.6 billion years, Lugaro and her team use radioactive nuclei as clocks that can reveal the time of astrophysical events before and around the Sun's birth.
21 Οκτ 2024 · Sun - Evolution, Structure, Radiation: The Sun has been shining for 4.6 billion years. Considerable hydrogen has been converted to helium in the core, where the burning is most rapid. The helium remains there, where it absorbs radiation more readily than hydrogen.
