Related topics: light

Beautiful dunes on Mars, sculpted by swirling winds

This interesting image from the HiRISE camera on the Mars Reconnaissance Orbiter shows a field of fascinating dunes called barchan dunes. These dunes have formed along a cliff in Chasma Boreale, in the North Pole of Mars.

Dogs cry more when reunited with their owners

Dogs and humans clearly have a special bond. But do dogs, like humans, produce more tears at times when they are flooded with emotion? A new study reported in Current Biology on August 22—which may be the first to look ...

Vision changes in space

Understanding the effects of microgravity on the human body is essential in enabling astronauts to travel through the harsh environment of space for months, or even years. Significant changes to the body's skeletal and muscle ...

NGC 541 fuels an irregular galaxy in new Hubble image

This striking pair is an elliptical galaxy NGC 541 and an unusual star-forming, irregular dwarf galaxy known as Minkowski's object (the bluish object to the lower left of NGC 541). Elliptical galaxies are nearly spherical ...

Turning any camera into a polarization camera

Polarization, the direction in which light vibrates, provides a lot of information about the objects with which it interacts, from aerosols in the atmosphere to the magnetic field of stars.  However, because this quality ...

Understanding the language of the eyes

What is the significance of the sclera of our eyes? A question which researchers have been interested in for some time now. Recently a research team led by comparative psychologist Dr. Fuhimiro Kano has succeeded in deciphering ...

Time and beauty reveal the physics of human perceptions

Adrian Bejan, the J.A. Jones Distinguished Professor of Mechanical Engineering at Duke University, has published a new book titled "Time and Beauty: Why Time Flies and Beauty Never Dies." This is Bejan's fourth book written ...

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