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Developed by Einstein in 1915, the accepted approach of relativity is the avant-garde approach of gravity.

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At first glance, the center of the Milky Way seems like a very inhospitable place to try to form a planet. Stars crowd each other as they whiz through space like cars on a rush-hour freeway. Supernova explosions blast out shock waves and bathe the region in intense radiation. Powerful gravitational forces from a supermassive black hole twist and warp the fabric of space itself.

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The Arctic Ozone layer has this year, for the first time, suffered loss so severe that an ozone hole akin to that famously present over the Antarctic has now become an atmospheric feature, some thirteen miles above the ground where it appears that four fifths of atmospheric ozone has disappeared.

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The economic system has already collapsed. Wall street is the singularity. Corporations are parasites.

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Hello. My name is Stephen Hawking. Physicist, cosmologist and something of a dreamer. Although I cannot move and I have to speak through a computer, in my mind I am free. Free to explore the universe and ask the big questions, such as: is time travel possible? Can we open a portal to the past or find a shortcut to the future? Can we ultimately use the laws of nature to become masters of time itself?

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The true Facts about Global Warming.

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Not long ago, the idea of black holes was considered science fiction. People have always longed to discover a phenomenon in the universe that goes beyond the known laws of physics.

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My double perisdcope log.

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How to make a double periscope.

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10 incredibly amazing facts about the universe in general.