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The Primordial Fireball

The universe underwent an inflationary period of expansion. From an...

Interstellar space is not truly a vacuum devoid of matter...

What are the strengths and weaknesses of the distinction between...

A special event to mark the publication of Professor Barrow's...

Gresham College has been delivering public lectures since 1597 through...

In the late 19th-century, astronomical research could be practical, using...

The reality of the Earth's motion, as proclaimed by Copernicus...

Based on texts of the Indian tradition, this lecture discusses...

There is a rough intuition we all have that it...

Robbert Dijkgraaf's focus is on string theory, quantum gravity, and...