Should we call the cosmos seeking ET? Or is that risky?

Astronomers have their own version of the single person's dilemma: Do you wait by the phone for a call from that certain someone? Or do you make the call yourself and risk getting shot down?

Plugging the hole in Hawking's black hole theory

(Phys.org) —Recently physicists have been poking holes again in Stephen Hawking's black hole theory – including Hawking himself. For decades physicists across the globe have been trying to figure out the mysteries of ...

Fine-tuning Stephen Hawking's theory of mass

(Phys.org) —If you want to know your body's mass, you hop on a scale and watch the needle swing. But if you want to know the mass of a region out in space, there's no cosmic equivalent—the best you can do is consult a ...

Chandra adds to black hole birth announcement

New details about the birth of a famous black hole that took place millions of years ago have been uncovered, thanks to a team of scientists who used data from NASA's Chandra X-ray Observatory as well as from radio, optical ...

Glorious Dawn: Sagan, Hawking Sing (w/ Video)

Astronomer and long time science advocate Carl Sagan once said that he was "not very good at singing songs." But on Nov. 9 in Washington D.C., his voice could be heard singing about the wonders of universe -- 13 years after ...

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