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High-speed jets from a possible new class of galaxy

Seyfert galaxies are similar to spiral galaxies except that they have extraordinarily prominent, bright nuclei, sometimes as luminous as 100 billion Suns. Their huge energies are thought to be generated as matter falls towards ...

dateJan 19, 2015 in Astronomy
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Graphene plasmons go ballistic

Squeezing light into tiny circuits and controlling its flow electrically is a holy grail that has become a realistic scenario thanks to the discovery of graphene. This tantalizing achievement is realized by exploiting so-called ...

dateJan 12, 2015 in Nanomaterials
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Image: Multicoloured view of supernova remnant

Most celestial events unfold over thousands of years or more, making it impossible to follow their evolution on human timescales. Supernovas are notable exceptions, the powerful stellar explosions that make stars as bright ...

dateDec 22, 2014 in Astronomy
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Effects of accretion disks around newborn stars

Stars are born in dense, cool clouds of molecular gas and dust. When the local density is high enough, the matter can gravitationally collapse to form a new star, a so-called young stellar object (YSO). In its early phases, ...

dateDec 08, 2014 in Astronomy
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Taking the wraps off NISTAR

The NIST Advanced Radiometer (NISTAR), mothballed for more than a decade, is slated to make its space debut very soon about 1.5 million kilometers sunward of Earth. It will fly as part of the long-postponed Deep Space Climate ...

dateDec 03, 2014 in Space Exploration
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