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Scientists uncover a hidden mechanism that drives RNA synthesis

Scientists have long been fascinated by two promising classes of antibiotics that disable RNA polymerase (RNAP). They knew that these drugs could grind gene expression to a halt in several pathogens, including the bacterium behind tuberculosis, by binding to specific locations in RNAP. But despite decades of study, a…

Phys.org · 16 hours ago

Science

DNA origami nanosyringe actively transports molecules into synthetic cells

Transporting molecules across biological membranes is essential for life. In nature, this can occur through passive transport, known as diffusion. "Biological systems often use mechanical motion to accomplish tasks that cannot be achieved by diffusion alone," says Professor Laura Na Liu, director of the 2nd Physics In…

Phys.org · 16 hours ago

Science

NASA’s Voyager 2 Space Probe Just Got New Software From Over 13 Billion Miles Away

Related coverage: NASA’s Voyager 2 Space Probe Just Got New Software From Over 13 Billion Miles Away PetaPixel NASA Engineers Help Prolong Voyager 2’s Science Mission NASA Science (.gov) How NASA is powering the Voyager 2 probe from a galaxy away Mashable ‘Big Bang’ fix boosts Voyager 2’s mission in interstellar space cnn.com NASA figured out how to keep its 48-year-old Voyager 2 probe running for yet another year Space

PetaPixel · 16 hours ago

Science

X-rays: Beyond the Nobel Prize limit

When certain atoms are irradiated with laser light, they can produce a very different kind of laser light: laser pulses with extremely high frequencies in the X-ray range. These laser pulses, which helped achieve record-breaking results at TU Wien in the 1990s, were the subject of the 2023 Nobel Prize in Physics.

Phys.org · 17 hours ago