Astronomers have spotted not one but two dwarf galaxy black hole duos on separate collision courses, the first observational evidence of such a cosmic clash. Just as the black holes are heading for a collision and merger that will leave a more massive black hole behind, the dwarf galaxies they sit in will also merge and form a larger galaxy. The findings could have important implications for our understanding of how these cosmic titans and the galaxies they inhabit grew in the early universe. Scientists examined the colliding black hole pairings using NASA’s Chandra X-ray Observatory and found that as the dwarf galaxies are racing towards each other, they are pulling in gas that is ‘feeding’ their inhabitant black holes, causing them to grow even before the merger.
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"We knew that this would be a historic comet"
Astronomer David Levy was immortalised for his co-discovery of Comet Shoemaker-Levy 9 â its impact with Jupiter 29 years ago held the world in awe
CELESTRON STARSENSE EXPLORER DX 102AZ
Innovative technology provides the simplest and quickest solution yet to finding objects to observe, and this instrument will be very popular with beginners
MOON TOUR - COPERNICUS
Get up close to the âMonarch of the Moonâ
A HUNGRY BLACK HOLE 'SWITCHES ON' AS ASTRONOMERS WATCH IN SURPRISE
J221951 is one of the most extreme examples yet
MYSTERIES OF THE UNIVERSE - WHY DOES JUPITER CHANGE COLOUR?
For years, scientists have tried to work out why Jupiterâs bands frequently move and change colour. Now they believe theyâve found the answer
MARS HELICOPTER PHONES HOME AFTER A 63-DAY SILENCE
Rugged terrain had kept Ingenuity from communicating with its robotic partner, the Perseverance rover
SIX OF THE BEST SPACE PRANKS
It turns out that the sky isnât the limit when it comes to a good old-fashioned practical joke
CLIMATES CHANGE IN THE SOLAR SYSTEM
Alongside Earth, our planetary neighbourhood is changing. But not for the betterâŠ
TIME APPEARED TO MOVE FIVE TIMES SLOWER IN THE FIRST BILLION YEARS AFTER THE BIG BANG
Time dilation, brought about by the relativistic expansion of space, has resulted in the observed slowing of âclocksâ in the early universe
WHAT CAN WE DO WITH A CAPTURED ASTEROID?
Asteroids could provide us with rare resources