Nasa has released amazing audio from a pair of black holes that was captured by one of its space telescopes. But sound is just one kind of wave, and Nasa and the Chandra X-ray Center have built up a ...

why some young stars are found high up in the halo of our own Milky Way galaxy, far from the star-forming clouds in the main plane. PR Photo 04a/03: Sky field in the Virgo Cluster near Messier 84 (WFI ...

The giantgalaxy Messier 87 has finally been sized up, but outer parts that should havebeen there are missing, scientists now find. The galaxy is smaller than expected. Messier 87belongs to the Virgo ...

The new observations reveal that Messier 87's halo of stars has been cut short, with a diameter of about a million light-years, significantly smaller than expected, despite being about three times the ...

Related video: White Holes Are Probably Even More Weird Than Black Holes! Science Helps Explain Vacuous space, for the most part, lacks a continuous medium for the transmission of sound waves. But ...