Exotic objects in the sky

Everything you need to know about black holes, pulsars and the weirdest star in the universe.
By | Published: November 17, 2017 | Last updated on May 18, 2023
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Learn all about black holes in this free guide from Astronomy. Uncover the history behind Einstein’s theory of relativity, expanded to include gravitational forces along with electricity and magnetism, as well as the history of black holes.

This free download also explains pulsars, and how these rotating neutron stars are being used by scientists today to search for planets beyond Earth’s solar system. Plus: What’s the weirdest star in the universe?

Find out all that and more, simply by entering your email address below.

Download here!