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Light Beyond the Bulb: Over and Beyond the Rainbow (07-01-2015)
While scientists and philosophers have tried to figure out exactly what light is for millennia, it's only been in the past several hundred years or so that we've really started to figure it out.

A Tour of Circinus X-1 (06-25-2015)
These rings are light echoes, similar to sound echoes that we may experience here on Earth.

Light Beyond the Bulb: Intro to Light (06-04-2015)
The year 2015 has been declared to be the International Year of Light and Light-based Technologies by the United Nations.

A Tour of Space-time Foam (05-29-2015)
Since space-time foam, as it is called, is so tiny, scientists cannot observe it directly.

Chandra Sketches: Chandra Explained (05-18-2015)
Chandra does not look at light that we can see with our eyes. It detects x-rays from the Universe.

A Tour of SGR 1745-2900 (05-15-2015)
A new study reveals that the X-ray output from SGR 1745-2900 is dropping more slowly than for other magnetars, and its surface is hotter than expected.

A Tour of 3 Quasars (05-05-2015)
A group of unusual giant black holes may be consuming excessive amounts of matter, according to a new study using NASA's Chandra X-ray Observatory.

Chandra Sketches: Clara's Launch (04-30-2015)
My mom works for NASA, for a telescope that studies X-rays from space. She told me about how the telescope, called Chandra, was launched into space aboard the Space Shuttle.

A Tour of NGC 6388 (04-22-2015)
Chandra's excellent X-ray vision enabled the astronomers to determine that the X-rays from NGC 6388 were not coming from a black hole at the center of the cluster.

Space Scoop: Not Your Average Superhero (04-02-2015)
A black hole is formed when a massive star is squashed into an incredibly tiny volume.