Astronomers discover a new black hole in our galaxy

(Phys.org)—NASA's Swift satellite recently detected a rising tide of high-energy X-rays from a source toward the center of our Milky Way galaxy. The outburst, produced by a rare X-ray nova, announced the presence of a previously ...

Controversial new climate change results

(PhysOrg.com) -- New data show that the balance between the airborne and the absorbed fraction of CO2 has stayed approximately constant since 1850, despite emissions of CO2 having risen from about 2 billion tons a year in ...

Research suggests climate change target 'not safe'

An analysis of geological records that preserve details of the last known period of global warming has revealed 'startling' results which suggest current targets for limiting climate change are unsafe.

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