Cosmic Search for a Missing Limb

This new Picture of the Week, taken by the NASA/ESA Hubble Space Telescope, shows the dwarf galaxy NGC 4625, located about 30 million light-years away in the constellation of Canes Venatici (The Hunting Dogs). The image, acquired with the Advanced Camera for Surveys (ACS), reveals the single spiral arm of the galaxy, which gives it an asymmetric appearance. But why is there only […]

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Jupiter’s Colourful Clouds

By Calla Cofield Jupiter’s southern hemisphere is a swirling, curling sea of colorful clouds in a new image from NASA’s Juno spacecraft and two citizen scientists. The new image comes from data collected by the JunoCam instrument on Oct. 24, 2017, as Juno performed its ninth close flyby of Jupiter (its eighth science flyby), according to a statement […]

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Scientists Are Rewriting the History of Photosynthesis

By Jordana Cepelewicz RESEARCHERS HAVE CAUGHT their best glimpse yet into the origins of photosynthesis, one of nature’s most momentous innovations. By taking near-atomic, high-resolution X-ray images of proteins from primitive bacteria, investigators at Arizona State University and Pennsylvania State University have extrapolated what the earliest version of photosynthesis might have looked like nearly 3.5 billion […]

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What Does the Higgs-Boson Look Like?

By Kate Kershner In July 2012, the whole world came face to face with the Higgs boson: a sparkly, little light that danced across our screens like Tinker Bell. Wait, that’s not right. While physicists jumped for joy to “see” the Higgs boson — that elusive particle that composes the Higgs field, which allows particles […]

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Cosmic Radiation

Cassiopeia A is a famous supernova remnant, the product of a gigantic explosion of a massive star about 350 years ago. Although discovered in radio observations 50 years ago, we now know that its emitted radiation spans from radio through high-energy gamma rays. It is also one of the few remnants for which the birth […]

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The Moon is Full of Money

By Pope Brock was slung in my favorite deck chair, drink in hand, having a gawk at the night sky. Andromeda, Pisces … I trawled the constellations, mind abandoned, still aware in some curve at the back of my brain that the world is coming apart at the seams and we’re all fucked, and enjoying […]

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