You know how hard it is to get your mind around the size of even a single galaxy in the universe? Now try to imagine a wall of galaxies cemented together by dark matter.
In his final DNews segment, President Obama will highlight Henrietta Swan Leavitt, whose insights helped devise a cosmic yardstick for measuring the universe.
Astronomers have found a monster black hole, some 17 billion times more massive than the sun, in a modestly sized galaxy, raising suspicions that supermassive black holes may be much more common than originally thought.
Astronomers using the Hubble Space Telescope have spotted a bright galaxy located a record-breaking 13.4 billion light years away, the most distant galaxy found yet.
Tune in tonight at 7 p.m. for a fascinating Perimeter Institute public lecture on the mysteries of dark matter.
Powerful transient radio flashes in the universe pop off randomly and appear to defy explanation, but astronomers have made a breakthrough in pinpointing the exact source of one of these fast radio bursts.
Hold onto your hats, space watchers, because this news is HUGE. Scientists have detected gravitational waves for the first time -- ripples in spacetime that back up Einstein's work and let us eavesdrop on cosmological chaos.
Detection of gravitational waves from colliding black holes has been confirmed, proving a critical Einstein theory.
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