How do we know the age of stars
We can find out the age of a star cluster by plotting the stars on a graph called a Hertzsprung-Russell diagram.
We can find out the age of a star cluster by plotting the stars on a graph called a Hertzsprung-Russell diagram.
This is a short description of the constellation of Scorpius and some of the stars it contains.
A quick video to show the basics of finding stuff in the night sky, no telescopes or binoculars required, just your eyes. This is part 1 so it’s just the basics of a few bright stars and two constellations in the Southern Sky.
It’s not easy to make a star, you need a lot of cold space and a huge amount of hydrogen. But if you manage to do that then you can have your very own Sun sized star to keep you warm in winter.
Stellar evolution is a fascinating topic and what happens in the last phases of a star’s life is mind boggling. Some stars are so big that their collapsing core turns straight into a black hole that suppresses the supernova.
Magnetars are a fascinating type of object that are really mind boggling. These incredibly powerful star remnants are worth giving a closer look.
The European Space Agency (ESA) has released the second batch of data collected by the Gaia satellite revealing the positions of around 1.7 billion stars.
Stars don’t last forever, it might seem like 10 billion years is almost forever but not every star lives as long as our Sun. This article covers what happens when stars die and shows some very awesome images from the European Space Observatory of the surface of some stars.
Globular Clusters are a fascinating objects to view and can be easily seen with binoculars, they are groups of ancient stars huddled together and orbiting the central bulge of our galaxy.
You don’t need expensive equipment to do astrophotography. A smartphone and a telescope is all you need to get some great shots that will impress your friends and family.
(And we can do something about it.)
Life needs CHNOPS, the six essential elements Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, and Sulphur. Curiosity found them on ancient Mars, but a new study shows Earth was born without them. Only a lucky impact with Theia made our world habitable. In contrast, Venus never stood a chance. Meet the three planetary siblings and discover why only Earth became a cradle for life.
Mars’s mantle contains ancient fragments up to 4km wide from its formation—preserved like geological fossils from the planet’s violent early history.
Cosmic rays are hitting the atmosphere constantly. One of the products of the collisions is muons, and we can detect muons on the surface of the Earth to learn about the cosmic rays.
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