Gresham provides outstanding educational talks and videos for the public free of charge. There are over 3000 videos available on the Gresham website. Your support will help us to encourage people's love of learning for many years to come.
Asteroid impact could devastate the Earth, although preventive measures might detect and monitor orbits of potential killer asteroids. Longer term, the sun will evolve into a red giant and expand to a hundred times the orbit of the earth.
View the sky through an x-ray telescope and the conception of the universe changes dramatically. Black holes are best seen in x-rays, because impinging gas collides with the black hole at near light speed, resulting in intense x-ray and gamma ray emission.
Theories of the multiverse suggest that life-containing universes are incredibly rare. We live in one of these, whether by cosmological natural selection or by the consequences of a theory yet to be formulated.
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