The stars my destination
Meet the new record-holder for the LARGEST BLACK HOLE IN THE UNIVERSE (so far) in this EXPANDED and UPDATED version (in 1080p) of our most popular Cosmic Journeys episode. Our Milky Way may harbor millions of black holes... the ultra dense remnants of dead stars. But now, in the universe far beyond our galaxy, theres evidence of something far...
The area shows almost no signs of cosmic matter, meaning no stars, planets, solar systems or clouds of cosmic dust. Researchers couldn't even find dark matter, which is invisible but measurable by its gravitational pull. There were also no signs of black holes that might have gobbled up the matter once present in the region.
GJ 504 b: Pretty in Pink For those of you who love the color pink, you might enjoy a recent discovery in the world of astronomy. NASA scientists have discovered a gas giant planet around four times the size of Jupiter, 57 light years away from Earth. The large exoplanet, which orbits the Sun-like star; 59 Virginis (GJ 504), is making scientists question prior theories about planetary formation. Also, did we mention it is pink? Read more about this fascinating planet here.
The Cosmic Spare Tire (IC 5148) is a beautiful planetary nebula located some 3000 light-years away in the constellation of Grus (The Crane). The nebula has a diameter of a couple of light-years, and it is still growing at over 50 kilometres per second — one of the fastest expanding planetary nebulae known.
"NEUTRON STARS are dying stars that are seemingly ‘off the charts’ in almost every category. They are small and extremely dense; about 20 km in diameter with masses of about 1.4 times that of our Sun, meaning that on Earth, one teaspoon of a neutron star would weigh about 100 million tons. They also rotate exceedingly fast, about 700 times per second...the outer surface of these collapsed stars is likely to be 10 billion times stronger than steel or any other of Earth’s strongest alloys..."
In August of 2007, astronomers located a gigantic hole in the universe. This empty space, stretching nearly a billion light-years across, is devoid of any matter such as galaxies, stars, and gas, and neither does it contain the strange and mysterious dark matter, which can be detected but not seen. The large void in the Constellation Eridanus appears to be improbable given current cosmological models. A radical and controversial theory proposes that it is a "universe-in-mass black hole"
Center of the Milky Way - Images - redOrbit. Using one of the Paranal Observatory's, astronomers patiently followed the orbit of a particular star, designated S2, as it came within about 17 light-hours of the center of the Milky Way (about 3 times the radius of Pluto's orbit). Their results convincingly show that S2 is moving under the influence of the enormous gravity of an unseen object that must be extremely compact, a supermassive black hole.