A radical hypothesis reimagines Planet Nine not as a planet but as a primordial black hole—compact, ancient, and immensely dense. Uncovering Planet Nine or a black hole would unravel cosmic ...

Either classification would leave it unique (like this black hole in the solar system which is worrying scientists) amongst the known planets in our Solar System. Planet Nine identification is ...

Black holes are massive, mostly invisible and so ... Some astronomers have even considered whether Planet Nine, a hypothetical planet far out in the solar system that may be responsible for ...

There are "Planet Nine sceptics", said BBC Earth. Some experts believe "it isn’t even a planet, but a primordial black hole" and other astronomers are convinced that it is "simply natural bias ...

ASTRONOMERS may have just found the fastest exoplanet system in the galaxy – a super-Neptune world orbiting a hypervelocity star. The pair are thought to be moving at roughly 1.2million mph.

Astronomers have discovered a supermassive black hole that's shooting a giant energy ... Radio waves from this blazar traveled more than 12.9 billion light-years to reach us, which is a new ...

Beyond a certain region, not even light can escape the powerful tug of a black hole's gravity. And anything that ventures too close—be it star, planet, or spacecraft—will be stretched and ...

Orbits may be significantly altered, planets ejected, and the black hole may even capture planets into its own orbit. However, the effect of an asteroid-mass primordial black hole ...

Observations from NASA's Chandra X-ray telescope and the VLT have revealed jets blasting from supermassive black holes cause gas to cool and fall toward them in a cosmic feeding process.