Tuesday, September 10, 2013

ScienceDaily: Astronomy News

ScienceDaily: Astronomy News


NASA's black-hole-hunter catches its first 10 supermassive black holes

Posted: 09 Sep 2013 12:49 PM PDT

NASA's black-hole-hunter spacecraft, the Nuclear Spectroscopic Telescope Array, or NuSTAR, has "bagged" its first 10 supermassive black holes. The mission, which has a mast the length of a school bus, is the first telescope capable of focusing the highest-energy X-ray light into detailed pictures.

Hubble catches a spiral in the air pump

Posted: 09 Sep 2013 12:46 PM PDT

Lying more than 110 million light-years away from Earth in the constellation of Antlia (The Air Pump) is the spiral galaxy IC 2560, shown in a new image from NASA/ESA Hubble Space Telescope. At this distance it is a relatively nearby spiral galaxy, and is part of the Antlia cluster -- a group of over 200 galaxies held together by gravity. This cluster is unusual; unlike most other galaxy clusters, it appears to have no dominant galaxy within it.

Upgrade to Mars rovers could aid discovery on more distant worlds

Posted: 09 Sep 2013 12:30 PM PDT

Mars rovers, such as Curiosity, currently can't make science decisions on their own. That has to change if future rover missions are to make discoveries further out in the solar system, scientists say. To help future rover missions spend less time waiting for instructions from Earth, scientists have developed an advanced two-lens camera, called TextureCam, that can think about the pictures it snaps and make science-based decisions.

Hubble bubble may explain different measurements of expansion rate of the universe

Posted: 09 Sep 2013 06:25 AM PDT

The observable universe has been expanding since the Big Bang. It still is, causing galaxies beyond our Local Group to appear to be receding from us. The actual speed of this expansion is known as the Hubble constant. Due to its importance in calculating basic properties of the universe, such as its age, modern cosmology is tasked with determining the value of the constant. There are two conventional methods used, although their results are not congruent, according to researchers. Experts may now be able to explain the different measurements of the expansion of the universe.

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