Pulsars as detectors for gravitational waves

So far, they escape despite kilometer-scale detector systems of discovery: gravitational waves, vibrations of space-time whose survival Einstein forecast in his theory of general relativity. However, the detection of gravitational waves could soon be possible. And not with special detectors, but with ordinary radio telescopes that measure the arrival time of the radio signals from pulsars. The vibrations are there but not - as has been mostly assumed - as a sort of background noise, but it dominate individual signals of individual sources.

"Giant eye" for studying the Milky Way

Mission Gaia - a unique space observatory of the European Space Agency, which will make the survey of billions of stars, the Milky Way, built-in digital camera with a resolution of 1 billion pixels. This "giant eye" explores the galaxy and makes a detailed map of the distribution of stars in it.

California was the usual stone meteorite

Clash, which, as predictable, could be from a recent meteor fireball that flounces over California, in fact, was the usual earthly stone, scientists reported.

Stone interested researchers, because it was assumed that he was a first portion, which had been left meteor lit the night sky over the Bay Area of San Francisco on October 17.