Measuring Cosmic distances

                                                   Functioning of the white dwarf

Distance to the nearest asteroid and some other cosmic distances can be measured simply with the help of radar.

Bigger distances depend upon spotting a blasting star in a distant galaxy, or measuring the expansion of space time itself.

A type 1a supernova has been found in a nearby galaxy called the M101- also called as the Pinwheel galaxy.

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STAR DEVOURED BY A BLACK HOLE

Onset Of A Relativistic Jet

Studies of journal Nature provide possibilities of cosmic accidents on August 25 2011 that has been emitting X-rays towards Earth since late march. Astronomers were first alerted of the intense and unusual high-energy flares from the new source in the constellation Draco by NASA's Swift satellite.

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