Tag Archives: galaxy

Black hole mysteries

Nothing, not even light, can escape a black hole. Though black holes are invisible, they can create brilliant light shows. This illustration shows a black hole devouring a star. Credit: NASA/Goddard Space Flight Center/CI Lab

Scientists are just getting to know the black holes that help anchor our cosmos

Posted in Physics, Space | Tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

Twinkle, twinkle oldest stars

Blazars are bright galaxies that send high-powered radiation jets directly toward Earth. They can be used to detect the light in the universe left over from every star that ever shone. In this image, the blazars are shown as green dots; the Milky Way glows orange in the middle.  Credit: NASA, DOE, Fermi LAT Collaboration

Astronomers find traces of ancient light in the activity of bright, distant galaxies

Posted in Space | Tagged , , , , , , , , , , , , , , , , , , , ,

Super star-maker

This artist’s drawing shows what the central galaxy of the Phoenix cluster might look like. The small blue dots represent new stars forming. Credit: NASA.gov

A distant galaxy cluster churns out stars at a whopping rate

Posted in Space | Tagged , , , , , , , , , , , , , , , , , ,

Dark matter search turns up empty

A blue cloud of dark, or invisible, matter surrounds the swirl of the Milky Way galaxy in this illustration. A new study suggests our galaxy’s dark matter may have a shape other than a sphere. Credit: L. Calçada/ESO

Star study suggests our cosmic neighborhood may be lacking invisible matter

Posted in Space | Tagged , , , , , ,