Black hole ripples could help pin down expansion of universe

The echoes of light from jets launched from black holes offers a new way to pin down the distance to these exotic objects and to study a largely unobserved population in the center of the Galaxy. It could also even help determine ...

Radiant protostars and shadowy clouds clash in stellar nursery

The massive, star-forming interstellar cloud Lupus 3 is captured with the 570-megapixel US Department of Energy-fabricated Dark Energy Camera at NSF's NOIRLab's Cerro Tololo Inter-American Observatory in Chile. The dazzling ...

Scientists demonstrate time reflection of electromagnetic waves

When we look in a mirror, we are used to seeing our faces looking back at us. The reflected images are produced by electromagnetic light waves bouncing off of the mirrored surface, creating the common phenomenon called spatial ...

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