Quasars – The worst kind of light pollution
Quasars are the brightest objects in the universe and are amazingly powerful. They are caused by Super Massive Black Holes.
Quasars are the brightest objects in the universe and are amazingly powerful. They are caused by Super Massive Black Holes.
In this article in the Beginner Series we look at the size of the universe and our place in it to give some context to the amazing sights available to the budding astronomer.
(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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