Black Hole Record Shattered

In athletic events such as swimming or running, a world record will often stand for several years before it’s broken. The same thing usually holds true for astronomical records as well.

On October 17, astronomers using NASA’s Chandra X-ray Observatory announced that a black hole in the galaxy M33 contains 16 times the mass of the Sun. For two weeks it was the heaviest known black hole of its type. Such black holes are known as "stellar-mass" black holes, because they have masses typical of stars.

But in a paper to be published on November 1, another team is announcing a stellar-mass black hole with at least 24 times the mass of the Sun, and perhaps as many as 33 solar masses.
Read More@ NASA - Record ShatteredviaNASA-home

Scientists Discover Record Fifth Planet Orbiting Nearby Star

PASADENA, Calif. - Astronomers have announced the discovery of a fifth planet circling 55 Cancri, a star beyond our solar system. The star now holds the record for number of confirmed extrasolar planets orbiting in a planetary system.

The newly discovered planet weighs about 45 times the mass of Earth and may be similar to Saturn in its composition and appearance. The planet is the fourth from 55 Cancri and completes one orbit every 260 days. Its location places the planet in the "habitable zone," a band around the star where the temperature would permit liquid water to pool on solid surfaces. The distance from its star is approximately 116.7 million kilometers (72.5 million miles), slightly closer than Earth to our sun, but it orbits a star that is slightly fainter.
Read More @ NASA - Fifth Planet