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Astronomers find shockingly ancient black hole the size of 12 billion suns

An artist's conception of a quasar.

European Southern Observatory/AP/File

The object, some 12.8 billion light years away, is the most luminous object ever seen in such ancient space.

Portland, Maine

Scientists cite dramatic sea level rise off coast

Researchers say sea levels off of Portland, Maine, rose an “unprecedented” 5 inches during 2009 and 2010.

Latest Science headlines

NASA spacecraft circles Ceres in its first visit to dwarf planet

The craft traveled 3-billion miles to Ceres, where it will spend the next 16 months photographing the icy surface.

Fossil jaw sheds light on turning point in human evolution

At about 2.8 million years old, the partial jawbone pushes back the fossil record by at least 400,000 years for the human branch, which scientists call Homo.

UMass Lowell gets grant to find Earth 2.0

NASA has given $5.6 million to the school to build and test an imaging device that will detect planets capable of supporting life.

More Science headlines

Ideas

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2015/02/27/BostonGlobe.com/Ideas/Images/snowFinal-534.jpg Will Boston’s crazy snowfalls make people leave?

An endless winter has everyone threatening to flee for good. Who might really go — and how it could shift the population.

Instagram

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2013/12/17/BostonGlobe.com/Metro/Images/a4a68392593311e3a80a0a154a02c3a8_7-7210--90x90.jpg Boston Globe Instagram photos

A live stream of Instagram posts from The Boston Globe photo department.